diff --git a/src/window.py b/src/window.py
index e6e55d3..1fdf622 100644
--- a/src/window.py
+++ b/src/window.py
@@ -694,7 +694,7 @@ def keyPressEvent(self, event):
 
     def keyPressProcessing(self, event):
         if event.modifiers() == Qt.ControlModifier and event.key() == Qt.Key_S:
-            self.save_project_signal.emit()
+            self.save_project_action.trigger()
             return True
 
         if self.move_button.isChecked():