diff --git a/mopidy/core/listener.py b/mopidy/core/listener.py
index 530a98a0..b3ecda98 100644
--- a/mopidy/core/listener.py
+++ b/mopidy/core/listener.py
@@ -181,5 +181,8 @@ 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
         """
         pass