diff --git a/ACE/ace/Future.h b/ACE/ace/Future.h
index 579cc4e70038b..cd3c0fb61f5b7 100644
--- a/ACE/ace/Future.h
+++ b/ACE/ace/Future.h
@@ -16,6 +16,7 @@
 
 #include /**/ "ace/pre.h"
 
+#include <atomic>
 #include "ace/Unbounded_Set.h"
 #include "ace/Strategies_T.h"