diff --git a/rhodecode/lib/celerylib/__init__.py b/rhodecode/lib/celerylib/__init__.py
--- a/rhodecode/lib/celerylib/__init__.py
+++ b/rhodecode/lib/celerylib/__init__.py
@@ -35,15 +35,13 @@ from hashlib import md5
 from decorator import decorator
 from vcs.utils.lazy import LazyProperty
 
+from rhodecode.lib import str2bool
 from rhodecode.lib.pidlock import DaemonLock, LockHeld
 
 from pylons import  config
 
 log = logging.getLogger(__name__)
 
-def str2bool(v):
-    return v.lower() in ["yes", "true", "t", "1"] if v else None
-
 try:
     CELERY_ON = str2bool(config['app_conf'].get('use_celery'))
 except KeyError: