diff --git a/http_client.cpp b/http_client.cpp
index ab9d7b6..1e12dc3 100644
--- a/http_client.cpp
+++ b/http_client.cpp
@@ -1,4 +1,5 @@
 #include "http_client.h"
+#include <cstdint>
 #include <cstdio>
 #include <cstring>
 #include <sstream>