diff --git a/ankisyncd/sync_app.py b/ankisyncd/sync_app.py
index b72309b..589b2f7 100644
--- a/ankisyncd/sync_app.py
+++ b/ankisyncd/sync_app.py
@@ -265,7 +265,7 @@ class SyncMediaHandler(anki.sync.MediaSyncer):
         else:
             result = "FAILED"
 
-        return {'data': result, 'err':''}
+        return {'data': result, 'err': ''}
 
 class SyncUserSession:
     def __init__(self, name, path, collection_manager, setup_new_collection=None):