diff --git a/lib/polyfilled/esm.d.ts b/lib/polyfilled/esm.d.ts
deleted file mode 100644
index 8a7391ab..00000000
--- a/lib/polyfilled/esm.d.ts
+++ /dev/null
@@ -1,19 +0,0 @@
-/**
- * Copyright (c) 2020, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
- *
- * WSO2 Inc. licenses this file to you under the Apache License,
- * Version 2.0 (the "License"); you may not use this file except
- * in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-export * from "../src/index-polyfill";