diff --git a/include/client/header.inc.php b/include/client/header.inc.php
index 42b7b6c781fbd55834b77da9872ad1a4aebfe977..309373cbaad5e595c350ddb839b438c13912e49e 100644
--- a/include/client/header.inc.php
+++ b/include/client/header.inc.php
@@ -28,7 +28,7 @@ if ($lang) {
     <title><?php echo Format::htmlchars($title); ?></title>
     <meta name="description" content="customer support platform">
     <meta name="keywords" content="osTicket, Customer support system, support ticket system">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
 	<link rel="stylesheet" href="<?php echo ROOT_PATH; ?>css/osticket.css" media="screen">
     <link rel="stylesheet" href="<?php echo ASSETS_PATH; ?>css/theme.css" media="screen">
     <link rel="stylesheet" href="<?php echo ASSETS_PATH; ?>css/print.css" media="print">