diff --git a/server/methods/loadHistory.coffee b/server/methods/loadHistory.coffee
index 834f7d57a78..fb9e86aa0f0 100644
--- a/server/methods/loadHistory.coffee
+++ b/server/methods/loadHistory.coffee
@@ -4,7 +4,7 @@ Meteor.methods
 		check rid, String
 		# check end, Match.Optional(Number)
 		check limit, Number
-		# check ls, Match.Optional(Number)
+		check ls, Match.Optional(Date)
 
 		if not Meteor.userId()
 			throw new Meteor.Error 'error-invalid-user', 'Invalid user', { method: 'loadHistory' }
diff --git a/server/methods/loadNextMessages.coffee b/server/methods/loadNextMessages.coffee
index 3d23a4e1be5..8710dee1876 100644
--- a/server/methods/loadNextMessages.coffee
+++ b/server/methods/loadNextMessages.coffee
@@ -2,7 +2,7 @@ Meteor.methods
 	loadNextMessages: (rid, end, limit=20) ->
 
 		check rid, String
-		check end, Match.Optional(Number)
+		# check end, Match.Optional(Number)
 		check limt, Number
 
 		if not Meteor.userId()