diff --git a/xCAT-server/share/xcat/install/scripts/post.rhels8 b/xCAT-server/share/xcat/install/scripts/post.rhels8
index 5d06b9df0..d875efbaa 100644
--- a/xCAT-server/share/xcat/install/scripts/post.rhels8
+++ b/xCAT-server/share/xcat/install/scripts/post.rhels8
@@ -15,6 +15,6 @@ do
             msgutil_r "$MASTER_IP" "info" "set NIC $nicname to be activated on system boot" "/var/log/xcat/xcat.log"
             ;;
 	esac
-        sed -i 's/ONBOOT=no/ONBOOT=yes/' "$i" 
+        sed -i 's/ONBOOT=no/ONBOOT=yes/' "$i"
     fi
 done