diff --git a/liblangutil/EVMVersion.h b/liblangutil/EVMVersion.h
index aa23ea6ee..22f85c8af 100644
--- a/liblangutil/EVMVersion.h
+++ b/liblangutil/EVMVersion.h
@@ -21,6 +21,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <optional>
 #include <string>