diff --git a/gui/qt/main_window.py b/gui/qt/main_window.py
index b962e217..785e683c 100644
--- a/gui/qt/main_window.py
+++ b/gui/qt/main_window.py
@@ -2817,7 +2817,7 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
             except Exception:
                 self.print_msg("error: cannot display plugin", name)
                 traceback.print_exc(file=sys.stdout)
-        grid.setRowStretch(i+1,1)
+        grid.setRowStretch(len(plugins.descriptions.values()), 1)
         vbox.addLayout(Buttons(CloseButton(d)))
         d.exec_()