diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ea456adfad..465d98455b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,6 +16,7 @@ jobs:
       - uses: ./.github/actions/setup_environment
       - run: make GO_ONLY=1 SKIP_GOLANGCI_LINT=1
       - run: go test ./tsdb/ -test.tsdb-isolation=false
+      - run: GOARCH=386 go test ./cmd/prometheus
       - run: make -C documentation/examples/remote_storage
       - run: make -C documentation/examples
       - uses: ./.github/actions/check_proto
diff --git a/tsdb/head.go b/tsdb/head.go
index 8dd1511639..3afd745ffe 100644
--- a/tsdb/head.go
+++ b/tsdb/head.go
@@ -130,14 +130,15 @@ type HeadOptions struct {
 	// https://pkg.go.dev/sync/atomic#pkg-note-BUG
 	MaxExemplars atomic.Int64
 
+	OutOfOrderTimeWindow atomic.Int64
+	OutOfOrderCapMax     atomic.Int64
+
 	ChunkRange int64
 	// ChunkDirRoot is the parent directory of the chunks directory.
 	ChunkDirRoot         string
 	ChunkPool            chunkenc.Pool
 	ChunkWriteBufferSize int
 	ChunkWriteQueueSize  int
-	OutOfOrderTimeWindow atomic.Int64
-	OutOfOrderCapMax     atomic.Int64
 
 	// StripeSize sets the number of entries in the hash map, it must be a power of 2.
 	// A larger StripeSize will allocate more memory up-front, but will increase performance when handling a large number of series.