diff --git a/www/sites/all/modules/services/services.runtime.inc b/www/sites/all/modules/services/services.runtime.inc
index e3687c3..15b56f9 100644
--- a/www/sites/all/modules/services/services.runtime.inc
+++ b/www/sites/all/modules/services/services.runtime.inc
@@ -232,6 +232,7 @@ function services_authentication_info($module) {
 function services_auth_invoke($module, $method, &$arg1 = NULL, &$arg2 = NULL, &$arg3 = NULL) {
   // Get information about the auth module
   $info = services_authentication_info($module);
+  drupal_alter('services_authentication_info', $info, $module);
   $func = $info && !empty($info[$method]) ? $info[$method] : FALSE;
   if ($func) {
     if (!empty($info['file'])) {