diff --git a/src/aiohttp_middlewares/annotations.py b/src/aiohttp_middlewares/annotations.py
index cf22edf..80badee 100644
--- a/src/aiohttp_middlewares/annotations.py
+++ b/src/aiohttp_middlewares/annotations.py
@@ -24,12 +24,11 @@
 from yarl import URL
 
 try:
-   # (<3.9.0) Try to import Middleware from aiohttp.web_middlewares
-   Middleware = importlib.import_module('aiohttp.web_middlewares')._Middleware
+    # (<3.9.0) Try to import Middleware from aiohttp.web_middlewares
+    Middleware = importlib.import_module('aiohttp.web_middlewares')._Middleware
 except AttributeError:
-   # (>=3.9.0) If that fails, import Middleware from aiohttp.typedefs
-   Middleware = importlib.import_module('aiohttp.typedefs').Middleware
-
+    # (>=3.9.0) If that fails, import Middleware from aiohttp.typedefs
+    Middleware = importlib.import_module('aiohttp.typedefs').Middleware
 
 # Make flake8 happy
 (Middleware,)