diff --git a/setup.py b/setup.py
index a25506b..763b2e6 100755
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2007-2023 The Wazo Authors  (see the AUTHORS file)
+# Copyright 2007-2024 The Wazo Authors  (see the AUTHORS file)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 from setuptools import find_packages, setup
@@ -12,4 +12,5 @@
     author_email='dev@wazo.community',
     url='http://wazo.community',
     packages=find_packages(),
+    package_data={'xivo': ['py.typed']},
 )
diff --git a/xivo/http_helpers.py b/xivo/http_helpers.py
index a21013b..43cf1d0 100644
--- a/xivo/http_helpers.py
+++ b/xivo/http_helpers.py
@@ -6,7 +6,7 @@
 import json
 import re
 import time
-from collections.abc import Iterable
+from collections.abc import Iterable, MutableMapping
 from json.decoder import JSONDecodeError
 from logging import Logger
 from typing import TYPE_CHECKING, Any
@@ -42,7 +42,7 @@ def __call__(
         return self.app(environ, start_response)
 
 
-def reverse_proxy_fix_api_spec(api_spec: dict[str, Any]) -> None:
+def reverse_proxy_fix_api_spec(api_spec: MutableMapping[str, Any]) -> None:
     prefix = request.headers.get('X-Script-Name')
     if prefix:
         api_spec['schemes'] = ['https']
diff --git a/xivo/py.typed b/xivo/py.typed
new file mode 100644
index 0000000..e69de29