diff --git a/beets/importer.py b/beets/importer.py
index 28ae145d7..0144aa48a 100644
--- a/beets/importer.py
+++ b/beets/importer.py
@@ -326,7 +326,6 @@ def initial_lookup(config):
     while True:
         task = yield task
         if task.sentinel:
-            task = yield task
             continue
 
         log.debug('Looking up: %s' % task.path)