diff --git a/xCAT/postscripts/xcatlib.sh b/xCAT/postscripts/xcatlib.sh
index d1a4d08a9..fe6febc63 100644
--- a/xCAT/postscripts/xcatlib.sh
+++ b/xCAT/postscripts/xcatlib.sh
@@ -493,7 +493,7 @@ function disableservice {
   
    if [ -n "$svcunit"  ];then
       cmd="systemctl disable  $svcunit"
-   elif [ -n "svcjob"  ];then
+   elif [ -n "$svcjob"  ];then
       cmd="update-rc.d -f $svcd remove"
    elif [ -n "$svcd"  ];then
      command -v chkconfig >/dev/null 2>&1