diff --git a/OpenRA.Mods.Common/UtilityCommands/CheckYaml.cs b/OpenRA.Mods.Common/UtilityCommands/CheckYaml.cs
index f8a7ef9329..5175ed89dc 100644
--- a/OpenRA.Mods.Common/UtilityCommands/CheckYaml.cs
+++ b/OpenRA.Mods.Common/UtilityCommands/CheckYaml.cs
@@ -159,7 +159,7 @@ namespace OpenRA.Mods.Common.UtilityCommands
 			{
 				CheckRules(modData, map.Rules);
 				if (map.SequenceDefinitions != null)
-					CheckSequences(modData, modData.DefaultRules, map.Sequences);
+					CheckSequences(modData, map.Rules, map.Sequences);
 			}
 
 			// Run all map-level checks here.