diff --git a/src/upload/system/library/retailcrm/lib/service/OrderManager.php b/src/upload/system/library/retailcrm/lib/service/OrderManager.php
index 64ad1a5..fe80f76 100644
--- a/src/upload/system/library/retailcrm/lib/service/OrderManager.php
+++ b/src/upload/system/library/retailcrm/lib/service/OrderManager.php
@@ -172,7 +172,7 @@ class OrderManager {
     }
 
     /**
-     * @param $customerExternalId
+     * @param string $customerExternalId Customer's external id
      *
      * @return bool
      */