diff --git a/forms/tests/test_api.py b/forms/tests/test_api.py
index acfe1efe..a1ee5f8b 100644
--- a/forms/tests/test_api.py
+++ b/forms/tests/test_api.py
@@ -503,8 +503,8 @@ def test_attachment_upload_and_download_public(
     }
     response = admin_client.post(url, data=payload, content_type="application/json")
 
-    # When an answer is created, the HTTP response should not contain attachments
-    assert response.json().get("attachments") is None
+    # When an answer is created, the HTTP response should not contain the key "attachments"
+    assert "attachments" not in response.json().keys()
 
     # Attachment should exist
     assert response.status_code == 201