diff --git a/db/skiplist.h b/db/skiplist.h
index 68c8bceba..4ee4ed714 100644
--- a/db/skiplist.h
+++ b/db/skiplist.h
@@ -32,6 +32,7 @@
 
 #pragma once
 #include <assert.h>
+#include <atomic>
 #include <stdlib.h>
 #include "util/arena.h"
 #include "port/port.h"