diff --git a/src/lib.rs b/src/lib.rs
index 9af25ce..771b5f0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,9 @@
 // Copyright (C) 2020-2022 Andy Kurnia.
 
+// to remove after https://github.com/rustwasm/wasm-bindgen/pull/2778 is released.
+// see also: https://github.com/rustwasm/wasm-bindgen/issues/2774#issuecomment-1025883235
+#![allow(clippy::unused_unit)]
+
 use rand::prelude::*;
 use wasm_bindgen::prelude::*;