diff --git a/src/ws/dune b/src/ws/dune
index 36e984dd..12ef15ff 100644
--- a/src/ws/dune
+++ b/src/ws/dune
@@ -51,7 +51,7 @@
  (public_name tiny_httpd.ws)
  (synopsis "Websockets for tiny_httpd")
  (private_modules common_ws_ utils_)
- (flags :standard -open Tiny_httpd_core)
+ (flags :standard  -w -32 -open Tiny_httpd_core)
  (foreign_stubs
   (language c)
   (names tiny_httpd_ws_stubs)