diff --git a/inc/lift/resolve_host.hpp b/inc/lift/resolve_host.hpp
index 77f71b6..29ddd92 100644
--- a/inc/lift/resolve_host.hpp
+++ b/inc/lift/resolve_host.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <string>
+#include <cstdint>
 
 namespace lift
 {