diff --git a/erb/v1/cpp03_zone.hpp.erb b/erb/v1/cpp03_zone.hpp.erb
index 3272e8de..dd873a69 100644
--- a/erb/v1/cpp03_zone.hpp.erb
+++ b/erb/v1/cpp03_zone.hpp.erb
@@ -14,6 +14,7 @@
 #include "msgpack/cpp_config.hpp"
 #include "msgpack/zone_decl.hpp"
 
+#include <stdint.h>
 #include <cstdlib>
 #include <memory>
 #include <vector>
diff --git a/include/msgpack/v1/detail/cpp03_zone.hpp b/include/msgpack/v1/detail/cpp03_zone.hpp
index 9f1c93f7..09d78be0 100644
--- a/include/msgpack/v1/detail/cpp03_zone.hpp
+++ b/include/msgpack/v1/detail/cpp03_zone.hpp
@@ -14,6 +14,7 @@
 #include "msgpack/cpp_config.hpp"
 #include "msgpack/zone_decl.hpp"
 
+#include <stdint.h>
 #include <cstdlib>
 #include <memory>
 #include <vector>
diff --git a/include/msgpack/v1/detail/cpp11_zone.hpp b/include/msgpack/v1/detail/cpp11_zone.hpp
index d04fd153..df744e31 100644
--- a/include/msgpack/v1/detail/cpp11_zone.hpp
+++ b/include/msgpack/v1/detail/cpp11_zone.hpp
@@ -14,6 +14,7 @@
 #include "msgpack/cpp_config.hpp"
 #include "msgpack/zone_decl.hpp"
 
+#include <cstdint>
 #include <cstdlib>
 #include <memory>
 #include <vector>