diff --git a/src/gui_qt/lib/usermodeleditor.py b/src/gui_qt/lib/usermodeleditor.py
index d9e5761..28d2289 100644
--- a/src/gui_qt/lib/usermodeleditor.py
+++ b/src/gui_qt/lib/usermodeleditor.py
@@ -126,7 +126,7 @@ class QUsermodelEditor(QtWidgets.QMainWindow):
         self.is_modified = False
 
     def closeEvent(self, evt: QtGui.QCloseEvent):
-        if not self.changes_saved:
+        if self.is_modified:
             evt.ignore()
         else:
             super().closeEvent(evt)