diff --git a/napi/src/js_values/number.rs b/napi/src/js_values/number.rs
index f3578de1..a81f45d5 100644
--- a/napi/src/js_values/number.rs
+++ b/napi/src/js_values/number.rs
@@ -6,16 +6,6 @@ use crate::{sys, Error, Result};
 
 pub struct JsNumber(pub(crate) Value);
 
-impl TryFrom<JsNumber> for usize {
-  type Error = Error;
-
-  fn try_from(value: JsNumber) -> Result<usize> {
-    let mut result = 0;
-    check_status!(unsafe { sys::napi_get_value_int64(value.0.env, value.0.value, &mut result) })?;
-    Ok(result as usize)
-  }
-}
-
 impl TryFrom<JsNumber> for u32 {
   type Error = Error;
 
diff --git a/test_module/src/array.rs b/test_module/src/array.rs
index 2348320b..3df64fd6 100644
--- a/test_module/src/array.rs
+++ b/test_module/src/array.rs
@@ -12,9 +12,8 @@ fn test_create_array(env: Env) -> ContextlessResult<JsObject> {
 
 #[js_function(1)]
 fn test_create_array_with_length(ctx: CallContext) -> Result<JsObject> {
-  ctx
-    .env
-    .create_array_with_length(ctx.get::<JsNumber>(0)?.try_into()?)
+  let length: u32 = ctx.get::<JsNumber>(0)?.try_into()?;
+  ctx.env.create_array_with_length(length as usize)
 }
 
 #[js_function(3)]