diff --git a/inc/msp/Value.hpp b/inc/msp/Value.hpp
index 6bef012..a304c23 100644
--- a/inc/msp/Value.hpp
+++ b/inc/msp/Value.hpp
@@ -1,6 +1,7 @@
 #ifndef VALUE_HPP
 #define VALUE_HPP
 
+#include <cstdint>
 #include <iostream>
 #include <utility>