diff --git a/modules/user/user.module b/modules/user/user.module
index ad93224465a4c91d41091a8b96608c2fc66e74db..2ee95f5837c91cdc0450e519e2b093b29f49bdac 100644
--- a/modules/user/user.module
+++ b/modules/user/user.module
@@ -605,7 +605,7 @@ function theme_user_picture($account) {
     }
 
     if (isset($picture)) {
-      $alt = t('%user\'s picture', array('%user' => $account->name ? $account->name : variable_get('anonymous', 'Anonymous')));
+      $alt = t('@user\'s picture', array('@user' => $account->name ? $account->name : variable_get('anonymous', 'Anonymous')));
       $picture = theme('image', $picture, $alt, $alt, '', FALSE);
       if (!empty($account->uid) && user_access('access user profiles')) {
         $picture = l($picture, "user/$account->uid", array('title' => t('View user profile.')), NULL, NULL, FALSE, TRUE);