diff --git a/src/convert/impls.rs b/src/convert/impls.rs
index a55c84acd..5556fd3c5 100644
--- a/src/convert/impls.rs
+++ b/src/convert/impls.rs
@@ -318,7 +318,7 @@ impl IntoWasmAbi for JsValue {
 impl OptionIntoWasmAbi for JsValue {
     #[inline]
     fn none() -> u32 {
-        std::u32::MAX
+        32
     }
 }