diff --git a/CHANGELOG.md b/CHANGELOG.md
index b59c04f674..ace48b1a9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,5 @@
 ## Main
+* [5622](https://github.com/grafana/loki/pull/5622) **chaudum**: Fix bug in query splitter that caused `interval` query parameter to be ignored and therefore returning more logs than expected.
 * [5521](https://github.com/grafana/loki/pull/5521) **cstyan**: Move stream lag configuration to top level clients config struct and refactor stream lag metric, this resolves a bug with duplicate metric collection when a single Promtail binary is running multiple Promtail clients.
 * [5568](https://github.com/grafana/loki/pull/5568) **afayngelerindbx**: Fix canary panics due to concurrent execution of `confirmMissing`
 * [5552](https://github.com/grafana/loki/pull/5552) **jiachengxu**: Loki mixin: add `DiskSpaceUtilizationPanel`
diff --git a/pkg/querier/queryrange/codec.go b/pkg/querier/queryrange/codec.go
index 712997198e..cb5c1acca2 100644
--- a/pkg/querier/queryrange/codec.go
+++ b/pkg/querier/queryrange/codec.go
@@ -75,6 +75,7 @@ func (r *LokiRequest) LogToSpan(sp opentracing.Span) {
 		otlog.String("start", timestamp.Time(r.GetStart()).String()),
 		otlog.String("end", timestamp.Time(r.GetEnd()).String()),
 		otlog.Int64("step (ms)", r.GetStep()),
+		otlog.Int64("interval (ms)", r.GetInterval()),
 		otlog.Int64("limit", int64(r.GetLimit())),
 		otlog.String("direction", r.GetDirection().String()),
 		otlog.String("shards", strings.Join(r.GetShards(), ",")),
@@ -218,10 +219,10 @@ func (Codec) DecodeRequest(_ context.Context, r *http.Request, forwardHeaders []
 			Direction: req.Direction,
 			StartTs:   req.Start.UTC(),
 			EndTs:     req.End.UTC(),
-			// GetStep must return milliseconds
-			Step:   int64(req.Step) / 1e6,
-			Path:   r.URL.Path,
-			Shards: req.Shards,
+			Step:      req.Step.Milliseconds(),
+			Interval:  req.Interval.Milliseconds(),
+			Path:      r.URL.Path,
+			Shards:    req.Shards,
 		}, nil
 	case InstantQueryOp:
 		req, err := loghttp.ParseInstantQuery(r)
@@ -285,6 +286,9 @@ func (Codec) EncodeRequest(ctx context.Context, r queryrangebase.Request) (*http
 		if request.Step != 0 {
 			params["step"] = []string{fmt.Sprintf("%f", float64(request.Step)/float64(1e3))}
 		}
+		if request.Interval != 0 {
+			params["interval"] = []string{fmt.Sprintf("%f", float64(request.Interval)/float64(1e3))}
+		}
 		u := &url.URL{
 			// the request could come /api/prom/query but we want to only use the new api.
 			Path:     "/loki/api/v1/query_range",
@@ -799,7 +803,9 @@ func (p paramsRangeWrapper) End() time.Time {
 func (p paramsRangeWrapper) Step() time.Duration {
 	return time.Duration(p.GetStep() * 1e6)
 }
-func (p paramsRangeWrapper) Interval() time.Duration { return 0 }
+func (p paramsRangeWrapper) Interval() time.Duration {
+	return time.Duration(p.GetInterval() * 1e6)
+}
 func (p paramsRangeWrapper) Direction() logproto.Direction {
 	return p.GetDirection()
 }
diff --git a/pkg/querier/queryrange/codec_test.go b/pkg/querier/queryrange/codec_test.go
index d55bcaaf3e..f61abbafcb 100644
--- a/pkg/querier/queryrange/codec_test.go
+++ b/pkg/querier/queryrange/codec_test.go
@@ -37,26 +37,27 @@ func Test_codec_DecodeRequest(t *testing.T) {
 		wantErr    bool
 	}{
 		{"wrong", func() (*http.Request, error) { return http.NewRequest(http.MethodGet, "/bad?step=bad", nil) }, nil, true},
-		{"ok", func() (*http.Request, error) {
+		{"query_range", func() (*http.Request, error) {
 			return http.NewRequest(http.MethodGet,
-				fmt.Sprintf(`/query_range?start=%d&end=%d&query={foo="bar"}&step=1&limit=200&direction=FORWARD`, start.UnixNano(), end.UnixNano()), nil)
+				fmt.Sprintf(`/query_range?start=%d&end=%d&query={foo="bar"}&step=10&limit=200&direction=FORWARD`, start.UnixNano(), end.UnixNano()), nil)
 		}, &LokiRequest{
 			Query:     `{foo="bar"}`,
 			Limit:     200,
-			Step:      1000, // step is expected in ms.
+			Step:      10000, // step is expected in ms
 			Direction: logproto.FORWARD,
 			Path:      "/query_range",
 			StartTs:   start,
 			EndTs:     end,
 		}, false},
-		{"ok", func() (*http.Request, error) {
+		{"query_range", func() (*http.Request, error) {
 			return http.NewRequest(http.MethodGet,
-				fmt.Sprintf(`/query_range?start=%d&end=%d&query={foo="bar"}&step=86400&limit=200&direction=FORWARD`, start.UnixNano(), end.UnixNano()), nil)
+				fmt.Sprintf(`/query_range?start=%d&end=%d&query={foo="bar"}&interval=10&limit=200&direction=BACKWARD`, start.UnixNano(), end.UnixNano()), nil)
 		}, &LokiRequest{
 			Query:     `{foo="bar"}`,
 			Limit:     200,
-			Step:      86400000, // step is expected in ms.
-			Direction: logproto.FORWARD,
+			Step:      14000, // step is expected in ms; calculated default if request param not present
+			Interval:  10000, // interval is expected in ms
+			Direction: logproto.BACKWARD,
 			Path:      "/query_range",
 			StartTs:   start,
 			EndTs:     end,
@@ -222,7 +223,8 @@ func Test_codec_EncodeRequest(t *testing.T) {
 	toEncode := &LokiRequest{
 		Query:     `{foo="bar"}`,
 		Limit:     200,
-		Step:      86400000,
+		Step:      86400000, // nanoseconds
+		Interval:  10000000, // nanoseconds
 		Direction: logproto.FORWARD,
 		Path:      "/query_range",
 		StartTs:   start,
@@ -238,12 +240,14 @@ func Test_codec_EncodeRequest(t *testing.T) {
 	require.Equal(t, fmt.Sprintf("%d", 200), got.URL.Query().Get("limit"))
 	require.Equal(t, `FORWARD`, got.URL.Query().Get("direction"))
 	require.Equal(t, "86400.000000", got.URL.Query().Get("step"))
+	require.Equal(t, "10000.000000", got.URL.Query().Get("interval"))
 
 	// testing a full roundtrip
 	req, err := LokiCodec.DecodeRequest(context.TODO(), got, nil)
 	require.NoError(t, err)
 	require.Equal(t, toEncode.Query, req.(*LokiRequest).Query)
 	require.Equal(t, toEncode.Step, req.(*LokiRequest).Step)
+	require.Equal(t, toEncode.Interval, req.(*LokiRequest).Interval)
 	require.Equal(t, toEncode.StartTs, req.(*LokiRequest).StartTs)
 	require.Equal(t, toEncode.EndTs, req.(*LokiRequest).EndTs)
 	require.Equal(t, toEncode.Direction, req.(*LokiRequest).Direction)
diff --git a/pkg/querier/queryrange/downstreamer.go b/pkg/querier/queryrange/downstreamer.go
index f4ae9e756d..8e7b184bc2 100644
--- a/pkg/querier/queryrange/downstreamer.go
+++ b/pkg/querier/queryrange/downstreamer.go
@@ -3,7 +3,6 @@ package queryrange
 import (
 	"context"
 	"fmt"
-	"time"
 
 	"github.com/go-kit/log/level"
 	"github.com/prometheus/prometheus/model/labels"
@@ -26,7 +25,7 @@ type DownstreamHandler struct {
 }
 
 func ParamsToLokiRequest(params logql.Params, shards logql.Shards) queryrangebase.Request {
-	if params.Start() == params.End() {
+	if params.Start().Equal(params.End()) {
 		return &LokiInstantRequest{
 			Query:     params.Query(),
 			Limit:     params.Limit(),
@@ -39,7 +38,8 @@ func ParamsToLokiRequest(params logql.Params, shards logql.Shards) queryrangebas
 	return &LokiRequest{
 		Query:     params.Query(),
 		Limit:     params.Limit(),
-		Step:      int64(params.Step() / time.Millisecond),
+		Step:      params.Step().Milliseconds(),
+		Interval:  params.Interval().Milliseconds(),
 		StartTs:   params.Start(),
 		EndTs:     params.End(),
 		Direction: params.Direction(),
diff --git a/pkg/querier/queryrange/queryrange.pb.go b/pkg/querier/queryrange/queryrange.pb.go
index d5a92e6eef..8faa96547f 100644
--- a/pkg/querier/queryrange/queryrange.pb.go
+++ b/pkg/querier/queryrange/queryrange.pb.go
@@ -38,6 +38,7 @@ type LokiRequest struct {
 	Query     string             `protobuf:"bytes,1,opt,name=query,proto3" json:"query,omitempty"`
 	Limit     uint32             `protobuf:"varint,2,opt,name=limit,proto3" json:"limit,omitempty"`
 	Step      int64              `protobuf:"varint,3,opt,name=step,proto3" json:"step,omitempty"`
+	Interval  int64              `protobuf:"varint,9,opt,name=interval,proto3" json:"interval,omitempty"`
 	StartTs   time.Time          `protobuf:"bytes,4,opt,name=startTs,proto3,stdtime" json:"startTs"`
 	EndTs     time.Time          `protobuf:"bytes,5,opt,name=endTs,proto3,stdtime" json:"endTs"`
 	Direction logproto.Direction `protobuf:"varint,6,opt,name=direction,proto3,enum=logproto.Direction" json:"direction,omitempty"`
@@ -98,6 +99,13 @@ func (m *LokiRequest) GetStep() int64 {
 	return 0
 }
 
+func (m *LokiRequest) GetInterval() int64 {
+	if m != nil {
+		return m.Interval
+	}
+	return 0
+}
+
 func (m *LokiRequest) GetStartTs() time.Time {
 	if m != nil {
 		return m.StartTs
@@ -683,64 +691,65 @@ func init() {
 }
 
 var fileDescriptor_51b9d53b40d11902 = []byte{
-	// 905 bytes of a gzipped FileDescriptorProto
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+	0x0f, 0xe8, 0x61, 0x18, 0x90, 0xa3, 0x19, 0xe1, 0x02, 0xdd, 0x84, 0x0d, 0xf5, 0x88, 0x0d, 0xba,
+	0xa0, 0x6f, 0x05, 0xda, 0x90, 0xde, 0x28, 0x8c, 0x43, 0x61, 0x57, 0xbb, 0xa0, 0x7f, 0x23, 0xd0,
+	0x06, 0x42, 0xb0, 0xce, 0x05, 0x49, 0xed, 0x5a, 0x17, 0xf4, 0x6b, 0x81, 0x3a, 0xa3, 0x0e, 0x6c,
+	0x87, 0x89, 0x20, 0xec, 0x11, 0x8e, 0x6c, 0x4b, 0xf9, 0x4b, 0x1b, 0x7d, 0x02, 0x5b, 0x5c, 0x60,
+	0x26, 0x86, 0xdc, 0xae, 0x77, 0x41, 0x7f, 0x6b, 0xb7, 0xe3, 0xe9, 0xf4, 0xbc, 0x22, 0x3d, 0x6f,
+	0x58, 0xa4, 0xe7, 0xb7, 0x4f, 0x32, 0xb7, 0xf2, 0xf8, 0x77, 0x17, 0x04, 0x05, 0x08, 0x7d, 0x08,
+	0x1b, 0x24, 0x19, 0x0f, 0xb9, 0xdd, 0xd8, 0x00, 0xad, 0x21, 0xe8, 0x5d, 0x68, 0x8d, 0x43, 0x46,
+	0xf6, 0x45, 0x48, 0x13, 0xbb, 0xd9, 0x05, 0xfd, 0xed, 0xdd, 0x1d, 0xaf, 0x6c, 0xc3, 0x5e, 0x71,
+	0x15, 0xac, 0xa2, 0x64, 0x79, 0x29, 0x16, 0x53, 0xbb, 0xa5, 0x98, 0x50, 0x67, 0xd4, 0x83, 0x4d,
+	0x3e, 0xc5, 0x6c, 0xcc, 0xed, 0x76, 0xb7, 0xd6, 0xb7, 0x7c, 0xb8, 0xcc, 0xdc, 0xdc, 0x13, 0xe4,
+	0xff, 0xbd, 0xbf, 0x00, 0x44, 0x92, 0xd2, 0xfb, 0x09, 0x17, 0x38, 0x11, 0x2f, 0xc2, 0xec, 0x47,
+	0xb0, 0x29, 0x1b, 0x35, 0xe4, 0x8a, 0xdb, 0xab, 0x96, 0x9a, 0x63, 0xd6, 0x6b, 0xad, 0x6f, 0x54,
+	0x6b, 0xe3, 0xdc, 0x5a, 0x9b, 0x17, 0xd6, 0xfa, 0x7d, 0x1d, 0xbe, 0xa4, 0xe5, 0xc3, 0x53, 0x9a,
+	0x70, 0x22, 0x41, 0x0f, 0x05, 0x16, 0x33, 0xae, 0xcb, 0xcc, 0x41, 0xca, 0x13, 0xe4, 0x37, 0xe8,
+	0x53, 0x58, 0xdf, 0xc3, 0x02, 0xab, 0x92, 0xb7, 0x76, 0x6f, 0x7a, 0x86, 0x6a, 0xe5, 0x5b, 0xf2,
+	0xce, 0xbf, 0x25, 0xab, 0x5a, 0x66, 0xee, 0xf6, 0x18, 0x0b, 0xfc, 0x0e, 0x8d, 0x43, 0x41, 0xe2,
+	0x54, 0x1c, 0x07, 0x0a, 0x89, 0xde, 0x87, 0xd6, 0x67, 0x8c, 0x51, 0x36, 0x3c, 0x4e, 0x89, 0xa2,
+	0xc8, 0xf2, 0x6f, 0x2f, 0x33, 0x77, 0x87, 0x14, 0x4e, 0x03, 0xb1, 0x8a, 0x44, 0x6f, 0xc1, 0x86,
+	0x32, 0x14, 0x29, 0x96, 0xbf, 0xb3, 0xcc, 0xdc, 0x97, 0x15, 0xc4, 0x08, 0xd7, 0x11, 0xeb, 0x1c,
+	0x36, 0xae, 0xc4, 0x61, 0xd9, 0xca, 0xa6, 0xd9, 0x4a, 0x1b, 0xb6, 0x1e, 0x11, 0xc6, 0xe5, 0x33,
+	0x2d, 0xe5, 0x2f, 0x4c, 0x74, 0x0f, 0x42, 0x49, 0x4c, 0xc8, 0x45, 0xb8, 0x2f, 0xf5, 0x24, 0xc9,
+	0xb8, 0xe1, 0xe9, 0xa9, 0x0f, 0x08, 0x9f, 0x45, 0xc2, 0x47, 0x39, 0x0b, 0x46, 0x60, 0x60, 0x9c,
+	0xd1, 0x0f, 0x00, 0xb6, 0xbe, 0x20, 0x78, 0x4c, 0x18, 0xb7, 0xad, 0x6e, 0xad, 0xbf, 0xb5, 0xdb,
+	0xf7, 0xd6, 0x57, 0x82, 0xf7, 0x15, 0xa3, 0x31, 0x11, 0x53, 0x32, 0xe3, 0x45, 0x8f, 0x34, 0xc0,
+	0xff, 0xe6, 0x69, 0xe6, 0x7e, 0x6d, 0x2e, 0x31, 0x86, 0x0f, 0x70, 0x82, 0x07, 0x11, 0x3d, 0x0c,
+	0x07, 0x57, 0x5a, 0x37, 0x17, 0xbe, 0xbd, 0xcc, 0x5c, 0x70, 0x27, 0x28, 0x32, 0xeb, 0xfd, 0x06,
+	0xe0, 0xab, 0xb2, 0xb1, 0x0f, 0xe5, 0x7b, 0xdc, 0x98, 0x87, 0x18, 0x8b, 0xfd, 0xa9, 0x0d, 0xa4,
+	0xba, 0x02, 0x6d, 0x98, 0x3b, 0xa2, 0x7a, 0xad, 0x1d, 0x51, 0xdb, 0x7c, 0x47, 0x14, 0x43, 0x50,
+	0x3f, 0x77, 0x08, 0x1a, 0x17, 0x0e, 0xc1, 0xaf, 0x55, 0x3d, 0xf0, 0x45, 0x7d, 0x1b, 0x8c, 0xc2,
+	0xe7, 0xe5, 0x28, 0xd4, 0x54, 0xb6, 0xa5, 0xc2, 0xf4, 0x5b, 0xf7, 0xc7, 0x24, 0x11, 0xe1, 0x41,
+	0x48, 0xd8, 0x25, 0x03, 0x61, 0xa8, 0xac, 0xb6, 0xae, 0x32, 0x53, 0x22, 0xf5, 0xff, 0xac, 0x44,
+	0x7e, 0x02, 0xf0, 0x35, 0x49, 0xe1, 0x03, 0x3c, 0x22, 0xd1, 0x97, 0x38, 0x5e, 0xc9, 0xc4, 0x10,
+	0x04, 0xb8, 0x96, 0x20, 0xaa, 0x2f, 0x2e, 0x88, 0xda, 0x4a, 0x10, 0xbd, 0x1f, 0xab, 0xf0, 0xd6,
+	0xf3, 0x99, 0x6e, 0xd0, 0xf0, 0x37, 0x8c, 0x86, 0x5b, 0x3e, 0xfa, 0xdf, 0x36, 0xf4, 0x17, 0x00,
+	0xdb, 0xc5, 0x32, 0x47, 0x1e, 0x84, 0x7a, 0xa1, 0xa9, 0x7d, 0xad, 0xc9, 0xd9, 0x96, 0x6b, 0x8d,
+	0x95, 0xde, 0xc0, 0x88, 0x40, 0x09, 0x6c, 0x6a, 0x2b, 0x9f, 0x8b, 0xdb, 0xc6, 0x5c, 0x08, 0x46,
+	0x70, 0x7c, 0x6f, 0x8c, 0x53, 0x41, 0x98, 0xff, 0xb1, 0xec, 0xd8, 0xd3, 0xcc, 0x7d, 0xfb, 0xdf,
+	0x6a, 0x7a, 0x0e, 0x2b, 0x9b, 0xa2, 0xbf, 0x1b, 0xe4, 0x5f, 0xe9, 0x7d, 0x07, 0xe0, 0x2b, 0x32,
+	0x59, 0x59, 0x5b, 0xd9, 0xcd, 0x3d, 0xd8, 0x66, 0xf9, 0x39, 0x57, 0x5e, 0xef, 0x72, 0x9e, 0xfd,
+	0xfa, 0x49, 0xe6, 0x82, 0xa0, 0x44, 0xa2, 0xbb, 0x6b, 0x4b, 0xbe, 0x7a, 0xde, 0x92, 0x97, 0x90,
+	0x8a, 0xb9, 0xd6, 0xfd, 0xf7, 0xe6, 0xa7, 0x4e, 0xe5, 0xc9, 0xa9, 0x53, 0x79, 0x76, 0xea, 0x80,
+	0x6f, 0x17, 0x0e, 0xf8, 0x79, 0xe1, 0x80, 0x93, 0x85, 0x03, 0xe6, 0x0b, 0x07, 0xfc, 0xb1, 0x70,
+	0xc0, 0x9f, 0x0b, 0xa7, 0xf2, 0x6c, 0xe1, 0x80, 0xc7, 0x67, 0x4e, 0x65, 0x7e, 0xe6, 0x54, 0x9e,
+	0x9c, 0x39, 0x95, 0x51, 0x53, 0x55, 0x79, 0xf7, 0xef, 0x00, 0x00, 0x00, 0xff, 0xff, 0xb2, 0xd3,
+	0xfe, 0x78, 0xcf, 0x0a, 0x00, 0x00,
 }
 
 func (this *LokiRequest) Equal(that interface{}) bool {
@@ -771,6 +780,9 @@ func (this *LokiRequest) Equal(that interface{}) bool {
 	if this.Step != that1.Step {
 		return false
 	}
+	if this.Interval != that1.Interval {
+		return false
+	}
 	if !this.StartTs.Equal(that1.StartTs) {
 		return false
 	}
@@ -1115,11 +1127,12 @@ func (this *LokiRequest) GoString() string {
 	if this == nil {
 		return "nil"
 	}
-	s := make([]string, 0, 12)
+	s := make([]string, 0, 13)
 	s = append(s, "&queryrange.LokiRequest{")
 	s = append(s, "Query: "+fmt.Sprintf("%#v", this.Query)+",\n")
 	s = append(s, "Limit: "+fmt.Sprintf("%#v", this.Limit)+",\n")
 	s = append(s, "Step: "+fmt.Sprintf("%#v", this.Step)+",\n")
+	s = append(s, "Interval: "+fmt.Sprintf("%#v", this.Interval)+",\n")
 	s = append(s, "StartTs: "+fmt.Sprintf("%#v", this.StartTs)+",\n")
 	s = append(s, "EndTs: "+fmt.Sprintf("%#v", this.EndTs)+",\n")
 	s = append(s, "Direction: "+fmt.Sprintf("%#v", this.Direction)+",\n")
@@ -1271,6 +1284,11 @@ func (m *LokiRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if m.Interval != 0 {
+		i = encodeVarintQueryrange(dAtA, i, uint64(m.Interval))
+		i--
+		dAtA[i] = 0x48
+	}
 	if len(m.Shards) > 0 {
 		for iNdEx := len(m.Shards) - 1; iNdEx >= 0; iNdEx-- {
 			i -= len(m.Shards[iNdEx])
@@ -1849,6 +1867,9 @@ func (m *LokiRequest) Size() (n int) {
 			n += 1 + l + sovQueryrange(uint64(l))
 		}
 	}
+	if m.Interval != 0 {
+		n += 1 + sovQueryrange(uint64(m.Interval))
+	}
 	return n
 }
 
@@ -2078,6 +2099,7 @@ func (this *LokiRequest) String() string {
 		`Direction:` + fmt.Sprintf("%v", this.Direction) + `,`,
 		`Path:` + fmt.Sprintf("%v", this.Path) + `,`,
 		`Shards:` + fmt.Sprintf("%v", this.Shards) + `,`,
+		`Interval:` + fmt.Sprintf("%v", this.Interval) + `,`,
 		`}`,
 	}, "")
 	return s
@@ -2450,6 +2472,25 @@ func (m *LokiRequest) Unmarshal(dAtA []byte) error {
 			}
 			m.Shards = append(m.Shards, string(dAtA[iNdEx:postIndex]))
 			iNdEx = postIndex
+		case 9:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Interval", wireType)
+			}
+			m.Interval = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowQueryrange
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Interval |= int64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
 		default:
 			iNdEx = preIndex
 			skippy, err := skipQueryrange(dAtA[iNdEx:])
diff --git a/pkg/querier/queryrange/queryrange.proto b/pkg/querier/queryrange/queryrange.proto
index a28d75b73f..21d47641a2 100644
--- a/pkg/querier/queryrange/queryrange.proto
+++ b/pkg/querier/queryrange/queryrange.proto
@@ -15,6 +15,7 @@ message LokiRequest {
   string query = 1;
   uint32 limit = 2;
   int64 step = 3;
+  int64 interval = 9;
   google.protobuf.Timestamp startTs = 4 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
   google.protobuf.Timestamp endTs = 5 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
   logproto.Direction direction = 6;
diff --git a/pkg/querier/queryrange/split_by_interval.go b/pkg/querier/queryrange/split_by_interval.go
index 16c704e24b..cc8a45666e 100644
--- a/pkg/querier/queryrange/split_by_interval.go
+++ b/pkg/querier/queryrange/split_by_interval.go
@@ -232,6 +232,7 @@ func splitByTime(req queryrangebase.Request, interval time.Duration) ([]queryran
 				Query:     r.Query,
 				Limit:     r.Limit,
 				Step:      r.Step,
+				Interval:  r.Interval,
 				Direction: r.Direction,
 				Path:      r.Path,
 				StartTs:   start,
@@ -348,6 +349,7 @@ func splitMetricByTime(r queryrangebase.Request, interval time.Duration) ([]quer
 				Query:     lokiReq.Query,
 				Limit:     lokiReq.Limit,
 				Step:      lokiReq.Step,
+				Interval:  lokiReq.Interval,
 				Direction: lokiReq.Direction,
 				Path:      lokiReq.Path,
 				StartTs:   start,
@@ -367,6 +369,7 @@ func splitMetricByTime(r queryrangebase.Request, interval time.Duration) ([]quer
 			Query:     lokiReq.Query,
 			Limit:     lokiReq.Limit,
 			Step:      lokiReq.Step,
+			Interval:  lokiReq.Interval,
 			Direction: lokiReq.Direction,
 			Path:      lokiReq.Path,
 			StartTs:   start,
diff --git a/pkg/querier/queryrange/split_by_interval_test.go b/pkg/querier/queryrange/split_by_interval_test.go
index a5da3f74b0..a2df38b983 100644
--- a/pkg/querier/queryrange/split_by_interval_test.go
+++ b/pkg/querier/queryrange/split_by_interval_test.go
@@ -34,6 +34,18 @@ func Test_splitQuery(t *testing.T) {
 		}
 	}
 
+	buildLokiRequestWithInterval := func(start, end time.Time) queryrangebase.Request {
+		return &LokiRequest{
+			Query:     "foo",
+			Limit:     1,
+			Interval:  2,
+			StartTs:   start,
+			EndTs:     end,
+			Direction: logproto.BACKWARD,
+			Path:      "/path",
+		}
+	}
+
 	buildLokiSeriesRequest := func(start, end time.Time) queryrangebase.Request {
 		return &LokiSeriesRequest{
 			Match:   []string{"match1"},
@@ -63,6 +75,10 @@ func Test_splitQuery(t *testing.T) {
 			buildLokiRequest,
 			false,
 		},
+		"LokiRequestWithInterval": {
+			buildLokiRequestWithInterval,
+			false,
+		},
 		"LokiSeriesRequest": {
 			buildLokiSeriesRequest,
 			true,