diff --git a/src/_zkapauthorizer/tests/test_client_resource.py b/src/_zkapauthorizer/tests/test_client_resource.py
index 45f2a149422b7476696e70f2ce6ca9b72472c15a..a3f0112ddb033d75c0927757622b7b4cb4e2af47 100644
--- a/src/_zkapauthorizer/tests/test_client_resource.py
+++ b/src/_zkapauthorizer/tests/test_client_resource.py
@@ -430,17 +430,18 @@ class ResourceTests(TestCase):
         )
 
         matches_status = matches_response(
-            code_matcher=Not(MatchesAny(
-                Equals(404),
-                between(500, 599),
-            )),
+            code_matcher=Not(
+                MatchesAny(
+                    Equals(404),
+                    between(500, 599),
+                )
+            ),
         )
         self.assertThat(
             requesting,
             succeeded(matches_status),
         )
 
-
     @given(
         tahoe_configs(),
         api_auth_tokens(),