diff --git a/datasette/views/base.py b/datasette/views/base.py
index c81af938..2478bd84 100644
--- a/datasette/views/base.py
+++ b/datasette/views/base.py
@@ -28,7 +28,6 @@ from datasette.utils.asgi import (
     AsgiRouter,
     AsgiView,
     NotFound,
-    NotFound,
     Response,
 )