diff --git a/tools/run.py b/tools/run.py
index 2069731..5c73383 100644
--- a/tools/run.py
+++ b/tools/run.py
@@ -57,5 +57,5 @@ f.close()
 print "Please run source /etc/profile"
 
 os.system("ps -ef|grep celery")
-print "nohup celery -A judge.judger_controller worker -l DEBUG"
+print "nohup celery -A judge.judger_controller worker -l DEBUG &"