diff --git a/include/proto/ring.h b/include/proto/ring.h
index a82f935..d927b38 100644
--- a/include/proto/ring.h
+++ b/include/proto/ring.h
@@ -30,6 +30,8 @@
 struct ring *ring_resize(struct ring *ring, size_t size);
 void ring_free(struct ring *ring);
 ssize_t ring_write(struct ring *ring, size_t maxlen, const struct ist pfx[], size_t npfx, const struct ist msg[], size_t nmsg);
+int ring_attach_appctx(struct ring *ring, struct appctx *appctx);
+void ring_detach_appctx(struct ring *ring, struct appctx *appctx, size_t ofs);
 int ring_attach_cli(struct ring *ring, struct appctx *appctx);
 int cli_io_handler_show_ring(struct appctx *appctx);
 void cli_io_release_show_ring(struct appctx *appctx);