diff --git a/sdk/eventhub/azure-eventhub/azure/eventhub/extensions/__init__.py b/sdk/eventhub/azure-eventhub/azure/eventhub/extensions/__init__.py
index fa4f9cf4befe..f70db896c615 100644
--- a/sdk/eventhub/azure-eventhub/azure/eventhub/extensions/__init__.py
+++ b/sdk/eventhub/azure-eventhub/azure/eventhub/extensions/__init__.py
@@ -1 +1,5 @@
-__path__ = __import__('pkgutil').extend_path(__path__, __name__)
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+__path__ = __import__("pkgutil").extend_path(__path__, __name__)  # type: ignore