diff --git a/synapse/handlers/profile.py b/synapse/handlers/profile.py
index eb85dba01..6aa1c0f5e 100644
--- a/synapse/handlers/profile.py
+++ b/synapse/handlers/profile.py
@@ -161,7 +161,9 @@ class BaseProfileHandler(BaseHandler):
             profile = yield self.store.get_profileinfo(target_user.localpart)
             if profile.display_name:
                 raise SynapseError(
-                    400, "Changing display name is disabled on this server", Codes.FORBIDDEN
+                    400,
+                    "Changing display name is disabled on this server",
+                    Codes.FORBIDDEN,
                 )
 
         if len(new_displayname) > MAX_DISPLAYNAME_LEN:
diff --git a/tests/rest/client/v2_alpha/test_account.py b/tests/rest/client/v2_alpha/test_account.py
index 34e40a36d..99cc9163f 100644
--- a/tests/rest/client/v2_alpha/test_account.py
+++ b/tests/rest/client/v2_alpha/test_account.py
@@ -413,7 +413,7 @@ class ThreepidEmailRestTestCase(unittest.HomeserverTestCase):
     def test_add_email_if_disabled(self):
         """Test add mail to profile if disabled
         """
-        self.hs.config.enable_3pid_changes = True
+        self.hs.config.enable_3pid_changes = False
 
         client_secret = "foobar"
         session_id = self._request_token(self.email, client_secret)
@@ -485,7 +485,7 @@ class ThreepidEmailRestTestCase(unittest.HomeserverTestCase):
     def test_delete_email_if_disabled(self):
         """Test delete mail from profile if disabled
         """
-        self.hs.config.enable_3pid_changes = True
+        self.hs.config.enable_3pid_changes = False
 
         # Add a threepid
         self.get_success(