diff --git a/tests/app/test_frontend_proxy.py b/tests/app/test_frontend_proxy.py
index d3feafa1b7b07bb94d64b2a51c4a3e216629db05..be20a89682fd2c262512aaab3c9224d4fb2a712d 100644
--- a/tests/app/test_frontend_proxy.py
+++ b/tests/app/test_frontend_proxy.py
@@ -27,8 +27,8 @@ class FrontendProxyTests(HomeserverTestCase):
 
         return hs
 
-    def default_config(self, name="test"):
-        c = super().default_config(name)
+    def default_config(self):
+        c = super().default_config()
         c["worker_app"] = "synapse.app.frontend_proxy"
         return c
 
diff --git a/tests/app/test_openid_listener.py b/tests/app/test_openid_listener.py
index 89fcc3889a725587ab2147fae95c0cd4134fd942..7364f9f1ec15c5c4a358e2faa9902ed4acbbb8de 100644
--- a/tests/app/test_openid_listener.py
+++ b/tests/app/test_openid_listener.py
@@ -29,8 +29,8 @@ class FederationReaderOpenIDListenerTests(HomeserverTestCase):
         )
         return hs
 
-    def default_config(self, name="test"):
-        conf = super().default_config(name)
+    def default_config(self):
+        conf = super().default_config()
         # we're using FederationReaderServer, which uses a SlavedStore, so we
         # have to tell the FederationHandler not to try to access stuff that is only
         # in the primary store.
diff --git a/tests/federation/test_complexity.py b/tests/federation/test_complexity.py
index 24fa8dbb4508b169d8047deb46ec066894dcaaa0..94980733c4bde4cf116b8cd70c2841816d1daf2f 100644
--- a/tests/federation/test_complexity.py
+++ b/tests/federation/test_complexity.py
@@ -33,8 +33,8 @@ class RoomComplexityTests(unittest.FederatingHomeserverTestCase):
         login.register_servlets,
     ]
 
-    def default_config(self, name="test"):
-        config = super().default_config(name=name)
+    def default_config(self):
+        config = super().default_config()
         config["limit_remote_rooms"] = {"enabled": True, "complexity": 0.05}
         return config
 
diff --git a/tests/handlers/test_register.py b/tests/handlers/test_register.py
index e2915eb7b174ef8c054eb727881ebd48cb26dfac..e7b638dbfe49cad767de7085c60f09cd24675cde 100644
--- a/tests/handlers/test_register.py
+++ b/tests/handlers/test_register.py
@@ -34,7 +34,7 @@ class RegistrationTestCase(unittest.HomeserverTestCase):
     """ Tests the RegistrationHandler. """
 
     def make_homeserver(self, reactor, clock):
-        hs_config = self.default_config("test")
+        hs_config = self.default_config()
 
         # some of the tests rely on us having a user consent version
         hs_config["user_consent"] = {
diff --git a/tests/rest/client/v2_alpha/test_register.py b/tests/rest/client/v2_alpha/test_register.py
index d0c997e385bceafb317dda84c75e8ad62f523810..b6ed06e02dedf24388684830f57ff1ab22161fde 100644
--- a/tests/rest/client/v2_alpha/test_register.py
+++ b/tests/rest/client/v2_alpha/test_register.py
@@ -36,8 +36,8 @@ class RegisterRestServletTestCase(unittest.HomeserverTestCase):
     servlets = [register.register_servlets]
     url = b"/_matrix/client/r0/register"
 
-    def default_config(self, name="test"):
-        config = super().default_config(name)
+    def default_config(self):
+        config = super().default_config()
         config["allow_guest_access"] = True
         return config
 
diff --git a/tests/rest/key/v2/test_remote_key_resource.py b/tests/rest/key/v2/test_remote_key_resource.py
index 6776a56cadfd381e1c37e4a3d668ce4b02275a26..99eb47714983939357f1653ea1b8ceca81859702 100644
--- a/tests/rest/key/v2/test_remote_key_resource.py
+++ b/tests/rest/key/v2/test_remote_key_resource.py
@@ -143,8 +143,8 @@ class EndToEndPerspectivesTests(BaseRemoteKeyResourceTestCase):
     endpoint, to check that the two implementations are compatible.
     """
 
-    def default_config(self, *args, **kwargs):
-        config = super().default_config(*args, **kwargs)
+    def default_config(self):
+        config = super().default_config()
 
         # replace the signing key with our own
         self.hs_signing_key = signedjson.key.generate_signing_key("kssk")
diff --git a/tests/server_notices/test_resource_limits_server_notices.py b/tests/server_notices/test_resource_limits_server_notices.py
index eb540e34f65d42cef0b9a0dca8931f141663eaf9..0d27b92a86bb3e1c5ca76d7db7c2f9bde3ad19cb 100644
--- a/tests/server_notices/test_resource_limits_server_notices.py
+++ b/tests/server_notices/test_resource_limits_server_notices.py
@@ -28,7 +28,7 @@ from tests import unittest
 
 class TestResourceLimitsServerNotices(unittest.HomeserverTestCase):
     def make_homeserver(self, reactor, clock):
-        hs_config = self.default_config("test")
+        hs_config = self.default_config()
         hs_config["server_notices"] = {
             "system_mxid_localpart": "server",
             "system_mxid_display_name": "test display name",
diff --git a/tests/test_terms_auth.py b/tests/test_terms_auth.py
index 5ec5d2b358fd01b57385c1d96094b0277d66c5f8..81d796f3f3b3eb847cc610c41ef91eee6f14226b 100644
--- a/tests/test_terms_auth.py
+++ b/tests/test_terms_auth.py
@@ -28,8 +28,8 @@ from tests import unittest
 class TermsTestCase(unittest.HomeserverTestCase):
     servlets = [register_servlets]
 
-    def default_config(self, name="test"):
-        config = super().default_config(name)
+    def default_config(self):
+        config = super().default_config()
         config.update(
             {
                 "public_baseurl": "https://example.org/",
diff --git a/tests/unittest.py b/tests/unittest.py
index 8816a4d152ca4ce4d7bbc11b3b7d449d30220d40..23b59bea222c83faf54aa66e425c0fdff11bd8cf 100644
--- a/tests/unittest.py
+++ b/tests/unittest.py
@@ -311,14 +311,11 @@ class HomeserverTestCase(TestCase):
 
         return resource
 
-    def default_config(self, name="test"):
+    def default_config(self):
         """
         Get a default HomeServer config dict.
-
-        Args:
-            name (str): The homeserver name/domain.
         """
-        config = default_config(name)
+        config = default_config("test")
 
         # apply any additional config which was specified via the override_config
         # decorator.