diff --git a/xCAT-UI/lib/cmd.php b/xCAT-UI/lib/cmd.php
index db9a3a23b..a7a8d67c5 100644
--- a/xCAT-UI/lib/cmd.php
+++ b/xCAT-UI/lib/cmd.php
@@ -76,7 +76,7 @@ if (isset($_GET["cmd"])) {
             $opts_array = array($opts);
         }
     }
-    
+
     // Time needed to update /etc/hosts
     if (strncasecmp($cmd, "makehosts", 9) == 0) {
         sleep(5);
@@ -238,4 +238,4 @@ function extractExtnoderange($xml) {
 
     return $rsp;
 }
-?>
\ No newline at end of file
+?>