diff --git a/aqt/utils.py b/aqt/utils.py
index 955c10cd9..799fdf113 100644
--- a/aqt/utils.py
+++ b/aqt/utils.py
@@ -124,7 +124,7 @@ def askUser(text, parent=None, help="", defaultno=False, msgfunc=None, \
 class ButtonedDialog(QMessageBox):
 
     def __init__(self, text, buttons, parent=None, help="", title="Anki"):
-        QDialog.__init__(self, parent)
+        QMessageBox.__init__(self, parent)
         self.buttons = []
         self.setWindowTitle(title)
         self.help = help