diff --git a/editor/editor_undo_redo_manager.cpp b/editor/editor_undo_redo_manager.cpp
index 48855c572e8..bb5779f4c77 100644
--- a/editor/editor_undo_redo_manager.cpp
+++ b/editor/editor_undo_redo_manager.cpp
@@ -389,6 +389,7 @@ void EditorUndoRedoManager::set_history_as_saved(int p_id) {
 void EditorUndoRedoManager::set_history_as_unsaved(int p_id) {
 	History &history = get_or_create_history(p_id);
 	history.saved_version = UNSAVED_VERSION;
+	emit_signal(SNAME("history_changed"));
 }
 
 bool EditorUndoRedoManager::is_history_unsaved(int p_id) {