diff --git a/FastGithub.Http/HttpClientHandler.cs b/FastGithub.Http/HttpClientHandler.cs
index 80ec17a..6856a11 100644
--- a/FastGithub.Http/HttpClientHandler.cs
+++ b/FastGithub.Http/HttpClientHandler.cs
@@ -1,4 +1,5 @@
-using FastGithub.DomainResolve;
+using FastGithub.Configuration;
+using FastGithub.DomainResolve;
 using System;
 using System.Collections;
 using System.Collections.Generic;