diff --git a/src/server/game/Groups/GroupMgr.cpp b/src/server/game/Groups/GroupMgr.cpp
index 58eabc93b..81ba1dede 100644
--- a/src/server/game/Groups/GroupMgr.cpp
+++ b/src/server/game/Groups/GroupMgr.cpp
@@ -51,7 +51,7 @@ void GroupMgr::InitGroupIds()
     }
 }
 
-void GroupMgr::RegisterGroupId(uint32 groupId)
+void GroupMgr::RegisterGroupId(ObjectGuid::LowType groupId)
 {
     // Allocation was done in InitGroupIds()
     _groupIds[groupId] = true;