diff --git a/include/http_utility.hpp b/include/http_utility.hpp
index d282a28..119a1ee 100644
--- a/include/http_utility.hpp
+++ b/include/http_utility.hpp
@@ -1,5 +1,5 @@
 #pragma once
-#include "http_request.h"
+#include "http_request.hpp"
 
 #include <boost/algorithm/string.hpp>