diff --git a/a2wsgi/asgi.py b/a2wsgi/asgi.py
index 2c52bad..2692325 100644
--- a/a2wsgi/asgi.py
+++ b/a2wsgi/asgi.py
@@ -21,7 +21,7 @@ def __missing__(self, key):
 
 StatusStringMapping = defaultdict(
     lambda status: f"{status} Unknown Status Code",
-    {int(status): f"{status} {status.phrase}" for status in HTTPStatus},
+    {status.value: f"{status.value} {status.phrase}" for status in HTTPStatus},
 )