diff --git a/code/controllers/subsystem/mapping/levels.dm b/code/controllers/subsystem/mapping/levels.dm
index ac33ea8be05e..aa7ce5711fc9 100644
--- a/code/controllers/subsystem/mapping/levels.dm
+++ b/code/controllers/subsystem/mapping/levels.dm
@@ -165,6 +165,8 @@
 			SSatoms.init_map_bounds(loaded_bounds)
 
 		instance.on_loaded_finalize(instance.z_index)
+	else
+		deferred_callbacks += generation_callbacks
 
 	. = loaded_bounds