diff --git a/toot/tui/app.py b/toot/tui/app.py
index f0fc425..2a7b285 100644
--- a/toot/tui/app.py
+++ b/toot/tui/app.py
@@ -524,7 +524,7 @@ class TUI(urwid.Frame):
             if not self.overlay:
                 self.show_help()
 
-        elif key in (','):
+        elif key == ',':
             if not self.overlay:
                 self.timeline_generator = api.home_timeline_generator(
                     self.app, self.user, limit=40)