diff --git a/wayland/connection.c b/wayland/connection.c
index 73715e2d..f83979cf 100644
--- a/wayland/connection.c
+++ b/wayland/connection.c
@@ -647,6 +647,7 @@ wl_connection_demarshal(struct wl_connection *connection,
  err:
 	closure->count = i;
 	wl_closure_destroy(closure);
+	wl_connection_consume(connection, size);
 
 	return NULL;
 }