diff --git a/modules/layered_tile_map/editor/layered_tile_map_layer_editor.h b/modules/layered_tile_map/editor/layered_tile_map_layer_editor.h
index 957d8b033..45b13be95 100644
--- a/modules/layered_tile_map/editor/layered_tile_map_layer_editor.h
+++ b/modules/layered_tile_map/editor/layered_tile_map_layer_editor.h
@@ -52,6 +52,8 @@
 class LayeredTileMapLayerEditor;
 
 class LayeredTileMapLayerSubEditorPlugin : public Object {
+	GDCLASS(LayeredTileMapLayerSubEditorPlugin, Object);
+
 protected:
 	ObjectID edited_tile_map_layer_id;
 	LayeredTileMapLayer *_get_edited_layer() const;