diff --git a/xCAT/postscripts/syslog b/xCAT/postscripts/syslog
index 35889640b..4c4006ae7 100755
--- a/xCAT/postscripts/syslog
+++ b/xCAT/postscripts/syslog
@@ -94,7 +94,7 @@ config_Rsyslog_C3()
   grep "$xCATSettingsOLD$" $conf_file 2>&1 1> /dev/null
   if [ $? -eq 0 ]; then
        #remove the older version syslog rule generated by xCAT
-       sed -i "/$xCATSettingsOLD/,+1 d" $2
+       sed -i "/$xCATSettingsOLD$/,+1 d" $2
   fi
 
   grep "$xCATSettingsSTART" $conf_file 2>&1 1> /dev/null