diff --git a/src/init.php b/src/init.php
index bb5794d..29c19f3 100644
--- a/src/init.php
+++ b/src/init.php
@@ -165,7 +165,7 @@ function get_mttinfo($v)
 		case 'mobile_url':
 			$_mttinfo['mobile_url'] = Config::get('mobile_url');
 			if ($_mttinfo['mobile_url'] == '') {
-				$_mttinfo['mobile_url'] = get_mttinfo('url'). '?pda';
+				$_mttinfo['mobile_url'] = get_mttinfo('url'). '?mobile';
 			}
 			return $_mttinfo['mobile_url'];
 		case 'mtt_url':
diff --git a/src/themes/default/index.php b/src/themes/default/index.php
index f782a8a..10aaab7 100644
--- a/src/themes/default/index.php
+++ b/src/themes/default/index.php
@@ -10,7 +10,7 @@
 <?php endif; ?>
 <?php if(Config::get('mobile')): ?>
 <meta name="viewport" id="viewport" content="width=device-width" />
-<link rel="stylesheet" type="text/css" href="<?php mttinfo('template_url'); ?>pda.css?v=<?php mttinfo('version'); ?>" media="all" />
+<link rel="stylesheet" type="text/css" href="<?php mttinfo('template_url'); ?>mobile.css?v=<?php mttinfo('version'); ?>" media="all" />
 <?php else: ?>
 <link rel="stylesheet" type="text/css" href="<?php mttinfo('template_url'); ?>print.css?v=<?php mttinfo('version'); ?>" media="print" />
 <?php endif; ?>
diff --git a/src/themes/default/pda.css b/src/themes/default/mobile.css
similarity index 100%
rename from src/themes/default/pda.css
rename to src/themes/default/mobile.css