diff --git a/libevm/FeeStructure.h b/libevm/FeeStructure.h
index 2aca43799..6fa30dea4 100644
--- a/libevm/FeeStructure.h
+++ b/libevm/FeeStructure.h
@@ -22,6 +22,8 @@
 
 #pragma once
 
+#include <cstdint>
+
 namespace dev
 {
 namespace eth