diff --git a/bink.py b/bink.py
index 92c6633..ffc8a41 100755
--- a/bink.py
+++ b/bink.py
@@ -126,7 +126,7 @@ class App():
         self.update()
         self.loop.start()
 
-    def terminate():
+    def terminate(self):
         raise urwid.ExitMainLoop
         exit(0)