diff --git a/include/rocksdb/delete_scheduler.h b/include/rocksdb/delete_scheduler.h
index 788d59239..7c3eaee77 100644
--- a/include/rocksdb/delete_scheduler.h
+++ b/include/rocksdb/delete_scheduler.h
@@ -7,6 +7,7 @@
 
 #include <map>
 #include <string>
+#include <memory>
 
 #include "rocksdb/status.h"