diff --git a/sites/all/modules/contrib/authcache/modules/authcache_ajax/authcache_ajax.js b/sites/all/modules/contrib/authcache/modules/authcache_ajax/authcache_ajax.js
index 3df4cba..71357bb 100644
--- a/sites/all/modules/contrib/authcache/modules/authcache_ajax/authcache_ajax.js
+++ b/sites/all/modules/contrib/authcache/modules/authcache_ajax/authcache_ajax.js
@@ -46,7 +46,7 @@
           $.each(params, function(url) {
             var param = this;
             var $targets = $('.authcache-ajax-frag', context).filter(function () {
-              return $(this).data('p13n-frag') === frag && (!param || $(this).data('p13n-param') === param);
+              return $(this).data('p13n-frag') === frag && (!param || $(this).data('p13n-param').value === param);
             });
             if ($targets.length) {
               authcacheGet(url, function(markup) {
diff --git a/sites/all/modules/contrib/authcache/modules/authcache_ajax/authcache_ajax.module b/sites/all/modules/contrib/authcache/modules/authcache_ajax/authcache_ajax.module
index 8869e81..8d5096b 100644
--- a/sites/all/modules/contrib/authcache/modules/authcache_ajax/authcache_ajax.module
+++ b/sites/all/modules/contrib/authcache/modules/authcache_ajax/authcache_ajax.module
@@ -62,7 +62,7 @@ function theme_authcache_p13n_fragment__authcache_ajax($variables) {
     $attrs['class'][] = 'authcache-ajax-frag';
     $attrs['data-p13n-frag'] = $fragment;
     if ($param) {
-      $attrs['data-p13n-param'] = $param;
+      $attrs['data-p13n-param'] = drupal_json_encode(array('value' => $param));
     }
 
     drupal_add_js(array('authcacheP13nAjaxFragments' => array($fragment => array(url($url['path'], $url['options']) => $param))), 'setting');
@@ -124,7 +124,7 @@ function theme_authcache_p13n_partial__authcache_ajax($variables) {
 
     $attrs['class'][] = $class;
     $attrs['data-p13n-frag'] = $partial;
-    $attrs['data-p13n-param'] = $param;
+    $attrs['data-p13n-param'] = drupal_json_encode(array('value' => $param));
 
     return '<span ' . drupal_attributes($attrs) . '></span>';
   }