diff --git a/source/Enderal DLL/src/Util.h b/source/Enderal DLL/src/Util.h
index 7f3869fb..7e015b78 100644
--- a/source/Enderal DLL/src/Util.h	
+++ b/source/Enderal DLL/src/Util.h	
@@ -44,6 +44,10 @@ inline void CheckIncompatibleMods()
 		RE::ConsoleLog::GetSingleton()->Print("Loaded SureAI's Enderal: Forgotten Stories | Special Edition v2.0.x by Eddoursul and contributors");
 	}
 
+	if (RE::BSScript::Internal::VirtualMachine::GetSingleton()->TypeIsValid("_00E_QuestFunctions")) {
+		RE::DebugMessageBox("OUTDATED MOD: One of your mods modifies the _00E_QuestFunctions script, no longer used in Enderal SE 2.1+");
+	}
+
 	CheckWorldspaces();
 	CheckUnconvertedMap();
 	CheckSkyrimCells();