diff --git a/src/maploader/maploader.cpp b/src/maploader/maploader.cpp
index c53634c19..4e693974e 100644
--- a/src/maploader/maploader.cpp
+++ b/src/maploader/maploader.cpp
@@ -3374,6 +3374,8 @@ bool MapLoader::LoadLightmap(MapData* map)
 	{
 		Printf(PRINT_HIGH, "Pre-calculated LIGHTMAP surfaces do not match current level surfaces. Restart this level with 'developer 1' for further details.\nPerhaps you forget to rebuild lightmaps after modifying the map?\n");
 	}
+
+	return true;
 }
 
 //==========================================================================