diff --git a/xCAT-server/share/xcat/scripts/genduiduuid.sh b/xCAT-server/share/xcat/scripts/genduiduuid.sh
index e9bf49317..a0393a407 100644
--- a/xCAT-server/share/xcat/scripts/genduiduuid.sh
+++ b/xCAT-server/share/xcat/scripts/genduiduuid.sh
@@ -1,7 +1,7 @@
 if [ ! -r /etc/redhat-release ] || ! grep "release 6" /etc/redhat-release >/dev/null; then
     exit 0; #only rhel6 supported
 fi
-if [ -r /sys/devices/virtual/dmi/id/product_uuid ]; then 
+if [ -r /sys/devices/virtual/dmi/id/product_uuid ]; then
     duid='default-duid "\000\004';
     for i in `sed -e 's/\(..\)\(..\)\(..\)\(..\)-\(..\)\(..\)-\(..\)\(..\)/\4\3\2\1-\6\5-\8\7/;s/-//g;s/\(..\)/\1 /g' /sys/devices/virtual/dmi/id/product_uuid`; do
         num=`printf "%d" 0x$i`