diff --git a/gui/qt/installwizard.py b/gui/qt/installwizard.py
index 10be56bc..35b9bd9d 100644
--- a/gui/qt/installwizard.py
+++ b/gui/qt/installwizard.py
@@ -89,8 +89,8 @@ class InstallWizard(QDialog):
                 button.setChecked(True)
 
         vbox.addStretch(1)
-        vbox.addLayout(Buttons(CancelButton(self), OkButton(self, _('Next'))))
         self.set_layout(vbox)
+        vbox.addLayout(Buttons(CancelButton(self), OkButton(self, _('Next'))))
         self.show()
         self.raise_()