Index: sites/all/modules/contrib/oauth/includes/DrupalOAuthClient.inc
===================================================================
--- sites/all/modules/contrib/oauth/includes/DrupalOAuthClient.inc	(revision 3532)
+++ sites/all/modules/contrib/oauth/includes/DrupalOAuthClient.inc	(working copy)
@@ -181,8 +181,9 @@
     if ($this->version == OAUTH_COMMON_VERSION_1 && $options['callback']) {
       $options['params']['oauth_callback'] = $options['callback'];
     }
-    $options['params']['oauth_token'] = $this->requestToken->key;
-
+    if(!strpos($endpoint,'facebook')){
+      $options['params']['oauth_token'] = $this->requestToken->key;
+    }
     $endpoint = $this->getAbsolutePath($endpoint);
     $append_query = strpos($endpoint, '?') === FALSE ? '?' : '&';
     return $endpoint . $append_query . http_build_query($options['params'], NULL, '&');