diff --git a/relational_gui/guihandler.py b/relational_gui/guihandler.py
index d3c4a9c..b591abe 100644
--- a/relational_gui/guihandler.py
+++ b/relational_gui/guihandler.py
@@ -124,7 +124,7 @@ class relForm(QtWidgets.QMainWindow):
         else:
             r = _('You are using an unstable version.')
 
-        QtWidgets.QMessageBox.information(_('Version'), r)
+        QtWidgets.QMessageBox.information(self, _('Version'), r)
 
     def setHistoryShown(self, history_shown):
         self.history_shown = history_shown