diff --git a/tests/app/test_credentialing.py b/tests/app/test_credentialing.py
index d2d26328..94f3ed9f 100644
--- a/tests/app/test_credentialing.py
+++ b/tests/app/test_credentialing.py
@@ -292,6 +292,11 @@ def test_issue_credential(helpers, seeder):
         assert result.status_code == 404
         assert result.json == {'description': "name is not a valid reference to an identifier",
                                'title': '404 Not Found'}
+        
+        result = client.simulate_post(path="/identifiers/issuer/credentials", body=json.dumps({}).encode("utf-8"))
+        assert result.status_code == 400
+        assert result.json == {'description': "required field 'acdc' missing from request",
+                               'title': '400 Bad Request'}
 
         result = client.simulate_post(path="/identifiers/issuer/credentials", body=json.dumps(body).encode("utf-8"))
         op = result.json