diff --git a/app/notify_client/__init__.py b/app/notify_client/__init__.py
index 66ba89391..3dbdb57a4 100644
--- a/app/notify_client/__init__.py
+++ b/app/notify_client/__init__.py
@@ -1,3 +1,4 @@
+import os
 from flask import abort, has_request_context, request
 from flask_login import current_user
 from notifications_python_client import __version__