diff --git a/lib/include/url_utility.h b/lib/include/url_utility.h
index dc84bad..99a36a2 100644
--- a/lib/include/url_utility.h
+++ b/lib/include/url_utility.h
@@ -41,6 +41,7 @@
 
 #pragma once
 #include <algorithm>
+#include <cstdint>
 #include <iostream>
 #include <map>
 #include <string>