diff --git a/etcd/v3/Member.hpp b/etcd/v3/Member.hpp
index 057899d..3432a7b 100644
--- a/etcd/v3/Member.hpp
+++ b/etcd/v3/Member.hpp
@@ -3,6 +3,7 @@
 
 #include <string>
 #include <vector>
+#include <cstdint>
 using namespace std;
 
 namespace etcdv3 {