diff --git a/src/client.py b/src/client.py
index b2a5d69..3929d26 100644
--- a/src/client.py
+++ b/src/client.py
@@ -653,7 +653,7 @@ class Client(Base):
         if album in self._albums:
             album = self._albums[album]
             if not album.get_tracks():
-                return None
+                return (album, None)
             self._logger.debug("get albumart for album \"%s\"", album.get_title())
             size = 1
             offset = 0