diff --git a/headers/private/netservices2/HttpResult.h b/headers/private/netservices2/HttpResult.h
index fc8a290e92..0183071527 100644
--- a/headers/private/netservices2/HttpResult.h
+++ b/headers/private/netservices2/HttpResult.h
@@ -7,6 +7,7 @@
 #define _B_HTTP_RESULT_H_
 
 #include <memory>
+#include <optional>
 
 #include <String.h>