diff --git a/addons/editor_helper/dock.gd b/addons/editor_helper/dock.gd
index fd61dce..470f91f 100644
--- a/addons/editor_helper/dock.gd
+++ b/addons/editor_helper/dock.gd
@@ -38,6 +38,7 @@ func _on_minify_pressed():
 	scene.remove_child(scene.get_node("ProjectionViewport"))
 	scene.get_node("HeightMap").mesh_library = load("res://Assets/heightmap_meshlibrary.tres")
 	scene.remove_child(scene.get_node("NotMinified"))
+	EditorInterface.mark_scene_as_unsaved()
 
 func _on_expand_pressed():
 	var scene = get_scene()
@@ -55,6 +56,7 @@ func _on_expand_pressed():
 	scene.add_child(sv)
 	sv.owner = scene
 	update_proj_map()
+	EditorInterface.mark_scene_as_unsaved()
 
 func _on_up_pressed():
 	move_up_or_down(1)