diff --git a/etcd/v3/Member.hpp b/etcd/v3/Member.hpp
index 057899d..5260d21 100644
--- a/etcd/v3/Member.hpp
+++ b/etcd/v3/Member.hpp
@@ -1,6 +1,7 @@
 #ifndef __V3_ETCDV3MEMBERS_HPP__
 #define __V3_ETCDV3MEMBERS_HPP__
 
+#include <cstdint>
 #include <string>
 #include <vector>
 using namespace std;