diff --git a/src/worldmap/worldmap.cpp b/src/worldmap/worldmap.cpp
index 468634f1b9a..12e8041115a 100644
--- a/src/worldmap/worldmap.cpp
+++ b/src/worldmap/worldmap.cpp
@@ -24,6 +24,7 @@
 #include "gui/menu_manager.hpp"
 #include "object/ambient_light.hpp"
 #include "object/decal.hpp"
+#include "object/display_effect.hpp"
 #include "object/music_object.hpp"
 #include "object/tilemap.hpp"
 #include "physfs/ifile_stream.hpp"
@@ -115,6 +116,10 @@ WorldMap::finish_construction()
     add<MusicObject>();
   }
 
+  if (!get_object_by_type<DisplayEffect>()) {
+    add<DisplayEffect>("Effect");
+  }
+
   flush_game_objects();
 }