diff --git a/src/game/InstanceSaveMgr.cpp b/src/game/InstanceSaveMgr.cpp
index 128674d978..a60df7c4f9 100644
--- a/src/game/InstanceSaveMgr.cpp
+++ b/src/game/InstanceSaveMgr.cpp
@@ -85,7 +85,7 @@ InstanceSave* InstanceSaveManager::AddInstanceSave(uint32 mapId, uint32 instance
     const MapEntry* entry = sMapStore.LookupEntry(mapId);
     if (!entry)
     {
-        sLog.outError("InstanceSaveManager::AddInstanceSave: wrong mapid = %d!", mapId, instanceId);
+        sLog.outError("InstanceSaveManager::AddInstanceSave: wrong mapid = %d, instanceid = %d!", mapId, instanceId);
         return NULL;
     }