diff --git a/mopidy/backends/__init__.py b/mopidy/backends/__init__.py
index 13d1a537..8f60c33b 100644
--- a/mopidy/backends/__init__.py
+++ b/mopidy/backends/__init__.py
@@ -18,7 +18,7 @@ class BaseCurrentPlaylistController(object):
         self.backend = backend
         self.playlist = Playlist()
 
-    def add(self, track, at_position=None):
+    def add(self, uri, at_position=None):
         raise NotImplementedError
 
 class BasePlaybackController(object):