diff --git a/source/Setting.h b/source/Setting.h
index 3e77b78aef..1b3c443366 100644
--- a/source/Setting.h
+++ b/source/Setting.h
@@ -5,6 +5,7 @@
 #ifndef ROADRUNNER_SETTING_H
 #define ROADRUNNER_SETTING_H
 
+#include <cstdint>
 #include <variant>
 #include <iostream>
 #include <vector>