diff --git a/Source/Core/General/MapManager.cs b/Source/Core/General/MapManager.cs
index 528e8d0d..6b54cb28 100644
--- a/Source/Core/General/MapManager.cs
+++ b/Source/Core/General/MapManager.cs
@@ -972,7 +972,10 @@ namespace CodeImp.DoomBuilder
 						{
 							// We don't want to bother the user with this. There are a lot of lumps in
 							// the game configs that are trivial and don't need to be found.
-							//General.ErrorLogger.Add(ErrorType.Warning, ml.Key.ToString() + " should be read but was not found in the WAD file");
+							if(lumprequired)
+							{
+								General.ErrorLogger.Add(ErrorType.Warning, ml.Key.ToString() + " (required lump) should be read but was not found in the WAD file");
+							}
 						}
 					}
 				}