diff --git a/onionshare_gui/onionshare_gui.py b/onionshare_gui/onionshare_gui.py
index eed72485..5c427275 100644
--- a/onionshare_gui/onionshare_gui.py
+++ b/onionshare_gui/onionshare_gui.py
@@ -133,6 +133,7 @@ def main():
     webapp.qtapp = app
     webapp.clipboard = app.clipboard()
     webapp.stay_open = stay_open
+    webapp.debug = debug
 
     # run the web app in a new thread
     webapp_port = onionshare.choose_port()
diff --git a/onionshare_gui/webapp.py b/onionshare_gui/webapp.py
index 46f8b3b7..11f62cd8 100644
--- a/onionshare_gui/webapp.py
+++ b/onionshare_gui/webapp.py
@@ -8,6 +8,7 @@ onion_host = None
 qtapp = None
 clipboard = None
 stay_open = None
+debug = None
 
 url = None