diff --git a/base/timer.hpp b/base/timer.hpp
index f53f17ef4c..d7c008330d 100644
--- a/base/timer.hpp
+++ b/base/timer.hpp
@@ -1,5 +1,6 @@
 #pragma once
 
+#include "../std/stdint.hpp"
 #include "../std/string.hpp"
 
 namespace my