diff --git a/zerver/lib/user_groups.py b/zerver/lib/user_groups.py
index 556c27e678..cea86ca868 100644
--- a/zerver/lib/user_groups.py
+++ b/zerver/lib/user_groups.py
@@ -11,9 +11,8 @@ def access_user_group_by_id(user_group_id: int, user_profile: UserProfile) -> Us
     try:
         user_group = UserGroup.objects.get(id=user_group_id, realm=user_profile.realm)
         group_member_ids = get_user_group_members(user_group)
-        msg = _("Only group members and organization administrators can administer this group.")
         if not user_profile.is_realm_admin and user_profile.id not in group_member_ids:
-            raise JsonableError(msg)
+            raise JsonableError(_("Insufficient permission"))
     except UserGroup.DoesNotExist:
         raise JsonableError(_("Invalid user group"))
     return user_group
diff --git a/zerver/tests/test_user_groups.py b/zerver/tests/test_user_groups.py
index dafb195094..490ef8899c 100644
--- a/zerver/tests/test_user_groups.py
+++ b/zerver/tests/test_user_groups.py
@@ -178,9 +178,7 @@ class UserGroupAPITestCase(ZulipTestCase):
             "description": "Troubleshooting",
         }
         result = self.client_patch(f"/json/user_groups/{user_group.id}", info=params)
-        self.assert_json_error(
-            result, "Only group members and organization administrators can administer this group."
-        )
+        self.assert_json_error(result, "Insufficient permission")
 
         self.logout()
         # Test when organization admin tries to modify group
@@ -264,9 +262,7 @@ class UserGroupAPITestCase(ZulipTestCase):
         self.login_user(cordelia)
 
         result = self.client_delete(f"/json/user_groups/{user_group.id}")
-        self.assert_json_error(
-            result, "Only group members and organization administrators can administer this group."
-        )
+        self.assert_json_error(result, "Insufficient permission")
         self.assertEqual(UserGroup.objects.count(), 2)
 
         self.logout()
@@ -333,9 +329,7 @@ class UserGroupAPITestCase(ZulipTestCase):
         add = [cordelia.id]
         params = {"add": orjson.dumps(add).decode()}
         result = self.client_post(f"/json/user_groups/{user_group.id}/members", info=params)
-        self.assert_json_error(
-            result, "Only group members and organization administrators can administer this group."
-        )
+        self.assert_json_error(result, "Insufficient permission")
         self.assertEqual(UserGroupMembership.objects.count(), 4)
 
         self.logout()
@@ -380,9 +374,7 @@ class UserGroupAPITestCase(ZulipTestCase):
         self.login_user(cordelia)
         params = {"delete": orjson.dumps([hamlet.id]).decode()}
         result = self.client_post(f"/json/user_groups/{user_group.id}/members", info=params)
-        self.assert_json_error(
-            result, "Only group members and organization administrators can administer this group."
-        )
+        self.assert_json_error(result, "Insufficient permission")
         self.assertEqual(UserGroupMembership.objects.count(), 4)
 
         self.logout()