diff --git a/gui/qt/installwizard.py b/gui/qt/installwizard.py
index 9f6b35c0..1c3c8eb5 100644
--- a/gui/qt/installwizard.py
+++ b/gui/qt/installwizard.py
@@ -207,8 +207,8 @@ class InstallWizard(QDialog):
         vbox = QVBoxLayout()
         vbox.addWidget(QLabel(msg))
         vbox.addStretch(1)
-        vbox.addLayout(ok_cancel_buttons(self, _('OK')))
         self.set_layout(vbox)
+        vbox.addLayout(ok_cancel_buttons(self, _('OK')))
         if not self.exec_(): 
             return None
         return True