diff --git a/tests/unit/test_templates_editor_api.py b/tests/unit/test_templates_editor_api.py
index 361866831..06044e2a6 100755
--- a/tests/unit/test_templates_editor_api.py
+++ b/tests/unit/test_templates_editor_api.py
@@ -61,6 +61,9 @@ def _make_mock_clip(clip_id="clip-001", order=0, duration=10.0, clip_type="video
     clip.config = {}
     clip.asset_id = "asset-001"
     clip.status = "ready"
+    clip.template_clip_config_id = ""
+    clip.created_at = None
+    clip.updated_at = None
     return clip
 
 
@@ -327,7 +330,8 @@ class TestClipSplitMerge:
         resp = c.post(BASE + "/clips/merge", json={"clip_ids": ["clip-001", "clip-002"]})
         assert resp.status_code == 200
         data = resp.json()
-        assert "id" in data
+        assert "merged_clip" in data
+        assert "id" in data["merged_clip"]
         mock_plan_svc.merge_clips.assert_called_once_with(["clip-001", "clip-002"])
 
     def test_merge_clips_single_422(self, client):