diff --git a/xCAT-rmc/scripts/configrmcnode b/xCAT-rmc/scripts/configrmcnode
index 875a2e407..20ad92476 100755
--- a/xCAT-rmc/scripts/configrmcnode
+++ b/xCAT-rmc/scripts/configrmcnode
@@ -202,7 +202,11 @@ if [ $ADD -eq 1 ]; then
       rm -rf $NFSSERVER
   else
       mkdir -p /xcatmnt
-      result=`mount $NFSSERVER:/install/postscripts /xcatmnt`
+      if [[ $USENFSV4ONAIX = yes ]] || [[ $USENFSV4ONAIX = 1 ]] || [[ $USENFSV4ONAIX = Yes ]] || [[ $USENFSV4ONAIX = YES ]] || [[ $USENFSV4ONAIX = Y ]] || [[ $USENFSV4ONAIX = y ]]; then
+          result=`mount -o vers=4 $NFSSERVER:/install/postscripts /xcatmnt`
+      else
+          result=`mount $NFSSERVER:/install/postscripts /xcatmnt`
+      fi
       if [ $? -gt 0 ]; then
 	  echo "Failed to mount:$result"
 	  logger -t xCAT "Failed to mount $result"