diff --git a/include/rocksdb/utilities/backupable_db.h b/include/rocksdb/utilities/backupable_db.h
index c2f07c17c..5c3275084 100644
--- a/include/rocksdb/utilities/backupable_db.h
+++ b/include/rocksdb/utilities/backupable_db.h
@@ -18,6 +18,7 @@
 #include <string>
 #include <map>
 #include <vector>
+#include <functional>
 
 #include "rocksdb/utilities/stackable_db.h"