diff --git a/include/Task.h b/include/Task.h
index 3e6ed47e..aaa82660 100644
--- a/include/Task.h
+++ b/include/Task.h
@@ -39,6 +39,7 @@
 #include <iostream>
 
 #include "CM.h"
+#include <cstdint>
 
 namespace extemp {