diff --git a/zerver/lib/actions.py b/zerver/lib/actions.py
index 02297580fe..1f2efada2e 100644
--- a/zerver/lib/actions.py
+++ b/zerver/lib/actions.py
@@ -4385,6 +4385,7 @@ def do_change_stream_message_retention_days(
 def do_create_realm(
     string_id: str,
     name: str,
+    *,
     emails_restricted_to_domains: Optional[bool] = None,
     date_created: Optional[datetime.datetime] = None,
 ) -> Realm:
diff --git a/zerver/tests/test_auth_backends.py b/zerver/tests/test_auth_backends.py
index bd6a07a821..79bdf7dab9 100644
--- a/zerver/tests/test_auth_backends.py
+++ b/zerver/tests/test_auth_backends.py
@@ -5348,7 +5348,7 @@ class TestZulipLDAPUserPopulator(ZulipLDAPTestCase):
         )
 
     def test_user_in_multiple_realms(self) -> None:
-        test_realm = do_create_realm("test", "test", False)
+        test_realm = do_create_realm("test", "test", emails_restricted_to_domains=False)
         hamlet = self.example_user("hamlet")
         email = hamlet.delivery_email
         hamlet2 = do_create_user(email, None, test_realm, hamlet.full_name, acting_user=None)
diff --git a/zerver/tests/test_signup.py b/zerver/tests/test_signup.py
index f6b580d52c..f1e49fa357 100644
--- a/zerver/tests/test_signup.py
+++ b/zerver/tests/test_signup.py
@@ -3974,7 +3974,7 @@ class UserSignUpTest(InviteUserBase):
         ldap_user_attr_map = {
             "full_name": "cn",
         }
-        do_create_realm("test", "test", False)
+        do_create_realm("test", "test", emails_restricted_to_domains=False)
 
         with self.settings(
             POPULATE_PROFILE_VIA_LDAP=True,