diff --git a/gui/gui_classic.py b/gui/gui_classic.py
index 75da35e2..a56df6e6 100644
--- a/gui/gui_classic.py
+++ b/gui/gui_classic.py
@@ -1299,7 +1299,7 @@ class ElectrumWindow(QMainWindow):
         try:
             seed = self.wallet.decode_seed(password)
         except:
-            QMessageBox.warning(parent, _('Error'), _('Incorrect Password'), _('OK'))
+            QMessageBox.warning(self, _('Error'), _('Incorrect Password'), _('OK'))
             return
         self.show_seed(seed, self)