diff --git flag_friend.module flag_friend.module
index 9a51fae..97b63ce 100644
--- flag_friend.module
+++ flag_friend.module
@@ -599,7 +599,7 @@ function theme_flag_friend_message_email($status, $flag, $recipient, $sender) {
 
     case FLAG_FRIEND_PENDING:
       // sender added you as a friend
-      $email['subject'] = t('!username added you as a friend !site', array('!username' => $sender->name, '!site' => variable_get('site_name', '')));
+      $email['subject'] = t('!username added you as a friend on !site', array('!username' => $sender->name, '!site' => variable_get('site_name', '')));
       $email['body'] = t('!firstname added you as a friend on !site. We need to confirm that you know !firstname in order for you to be friends on !site.
 
       To confirm this friend request, follow the link below: