diff --git a/mopidy/core/listener.py b/mopidy/core/listener.py
index b3ecda98..8feb0324 100644
--- a/mopidy/core/listener.py
+++ b/mopidy/core/listener.py
@@ -181,7 +181,7 @@ class CoreListener(listener.Listener):
         Called whenever the currently playing stream title changes.
 
         *MAY* be implemented by actor.
-        
+
         :param title: the new stream title
         :type title: string
         """