diff --git a/packages/emnapi/src/value/convert2c.ts b/packages/emnapi/src/value/convert2c.ts
index 61c6aa50..9f341ea9 100644
--- a/packages/emnapi/src/value/convert2c.ts
+++ b/packages/emnapi/src/value/convert2c.ts
@@ -42,8 +42,7 @@ function napi_get_prototype (env: napi_env, value: napi_value, result: Pointer<n
     $CHECK_ARG!(envObject, result)
     const handle = emnapiCtx.handleStore.get(value)!
     if (handle.value == null) {
-      envObject.tryCatch.setError(new TypeError('Cannot convert undefined or null to object'))
-      return envObject.setLastError(napi_status.napi_pending_exception)
+      throw new TypeError('Cannot convert undefined or null to object')
     }
     let v: any
     try {