diff --git a/src/OAuth/OAuth2/Service/Facebook.php b/src/OAuth/OAuth2/Service/Facebook.php
index 4202b8b7..37fcbd24 100644
--- a/src/OAuth/OAuth2/Service/Facebook.php
+++ b/src/OAuth/OAuth2/Service/Facebook.php
@@ -120,6 +120,7 @@ class Facebook extends AbstractService
     const SCOPE_FRIENDS_GAMES                 = 'friends_games_activity';
     //Page Permissions
     const SCOPE_PAGES                         = 'manage_pages';
+    const SCOPE_PAGES_MESSAGING               = 'pages_messaging';
     const SCOPE_PUBLISH_PAGES                 = 'publish_pages';
 
     public function __construct(