diff --git a/h/schemas/api/group.py b/h/schemas/api/group.py
index b076130b5f9..d877f1ff4bf 100644
--- a/h/schemas/api/group.py
+++ b/h/schemas/api/group.py
@@ -18,6 +18,7 @@
     "description": {"type": "string", "maxLength": GROUP_DESCRIPTION_MAX_LENGTH},
     "groupid": {"type": "string", "pattern": GROUPID_PATTERN},
     "type": {"enum": ["private", "restricted", "open"]},
+    "pre_moderated": {"type": "boolean"},
 }
 
 
diff --git a/tests/unit/h/views/api/groups_test.py b/tests/unit/h/views/api/groups_test.py
index 4f8b02fca44..40c51b78258 100644
--- a/tests/unit/h/views/api/groups_test.py
+++ b/tests/unit/h/views/api/groups_test.py
@@ -337,6 +337,7 @@ def test_it_when_request_json_body_is_invalid(
                     type="private",
                 ),
             ),
+            ({"pre_moderated": True}, call.update(sentinel.group, pre_moderated=True)),
         ],
     )
     def test_update(