diff --git a/zerver/lib/server_initialization.py b/zerver/lib/server_initialization.py
index 946cf82985..e4c11fa8bd 100644
--- a/zerver/lib/server_initialization.py
+++ b/zerver/lib/server_initialization.py
@@ -3,6 +3,7 @@ from typing import Iterable, Optional, Tuple
 from django.conf import settings
 
 from zerver.lib.bulk_create import bulk_create_users
+from zerver.lib.user_groups import create_system_user_groups_for_realm
 from zerver.models import (
     Realm,
     RealmAuditLog,
@@ -25,6 +26,7 @@ def create_internal_realm() -> None:
         realm=realm, event_type=RealmAuditLog.REALM_CREATED, event_time=realm.date_created
     )
     RealmUserDefault.objects.create(realm=realm)
+    create_system_user_groups_for_realm(realm)
 
     # Create some client objects for common requests.  Not required;
     # just ensures these get low IDs in production, and in development
diff --git a/zerver/openapi/zulip.yaml b/zerver/openapi/zulip.yaml
index 6b67205fd0..a58bc3052c 100644
--- a/zerver/openapi/zulip.yaml
+++ b/zerver/openapi/zulip.yaml
@@ -14303,7 +14303,7 @@ paths:
                 type: array
                 items:
                   type: integer
-              example: [1, 2]
+              example: [8, 9]
           required: false
       responses:
         "200":
@@ -16459,7 +16459,7 @@ components:
         The ID of the target user group.
       schema:
         type: integer
-      example: 22
+      example: 29
       required: true
     QueueId:
       name: queue_id
diff --git a/zerver/tests/test_user_groups.py b/zerver/tests/test_user_groups.py
index 1c68ce9284..58b11d216d 100644
--- a/zerver/tests/test_user_groups.py
+++ b/zerver/tests/test_user_groups.py
@@ -39,7 +39,7 @@ class UserGroupTestCase(ZulipTestCase):
 
     def test_user_groups_in_realm_serialized(self) -> None:
         realm = get_realm("zulip")
-        user_group = UserGroup.objects.first()
+        user_group = UserGroup.objects.filter(realm=realm).first()
         assert user_group is not None
         membership = UserGroupMembership.objects.filter(user_group=user_group).values_list(
             "user_profile_id", flat=True