diff --git a/kallithea/controllers/admin/repos.py b/kallithea/controllers/admin/repos.py
--- a/kallithea/controllers/admin/repos.py
+++ b/kallithea/controllers/admin/repos.py
@@ -28,7 +28,6 @@ Original author and date, and relevant c
 import logging
 import traceback
 
-import celery.result
 import formencode
 from formencode import htmlfill
 from tg import request
@@ -172,7 +171,7 @@ class ReposController(BaseRepoController
 
         if task_id and task_id not in ['None']:
             if kallithea.CELERY_APP:
-                task_result = celery.result.AsyncResult(task_id, app=kallithea.CELERY_APP)
+                task_result = kallithea.CELERY_APP.AsyncResult(task_id)
                 if task_result.failed():
                     raise HTTPInternalServerError(task_result.traceback)