diff --git a/src/client.js b/src/client.js
index fbb9cc6..9ee7b03 100644
--- a/src/client.js
+++ b/src/client.js
@@ -70,6 +70,8 @@ class Client
     */
     async _post(uri, data)
     {
+        /**
+         * @type string */
         let url = this.url + uri
         if (this.csrf_token === undefined)
         {