diff --git a/templates/html.tpl.php b/templates/html.tpl.php
index 10c0a5a..6901d87 100644
--- a/templates/html.tpl.php
+++ b/templates/html.tpl.php
@@ -82,7 +82,7 @@
   <?php if ($default_mobile_metatags): ?>
     <meta name="MobileOptimized" content="width">
     <meta name="HandheldFriendly" content="true">
-    <meta name="viewport" content="width=device-width">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
   <?php endif; ?>
   <meta http-equiv="cleartype" content="on">