diff --git a/gui/qt/network_dialog.py b/gui/qt/network_dialog.py
index 83d7ef9f..31f7c7c3 100644
--- a/gui/qt/network_dialog.py
+++ b/gui/qt/network_dialog.py
@@ -183,7 +183,7 @@ class NetworkChoiceLayout(object):
         self.tor_button.clicked.connect(self.use_tor_proxy)
         grid.addWidget(self.tor_button, 5, 1, 1, 2)
         self.layout_ = vbox
-        td = TorDetector()
+        self.td = td = TorDetector()
         td.found_proxy.connect(self.suggest_proxy)
         td.start()