diff --git a/include/ipmid/sessionhelper.hpp b/include/ipmid/sessionhelper.hpp
index 3a72d19..5c09bfc 100644
--- a/include/ipmid/sessionhelper.hpp
+++ b/include/ipmid/sessionhelper.hpp
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <cstdint>
 #include <sstream>
 #include <string>