diff --git a/tests/func/test_api.py b/tests/func/test_api.py
index 680888e48..0bc124765 100644
--- a/tests/func/test_api.py
+++ b/tests/func/test_api.py
@@ -142,7 +142,7 @@ def test_summon(tmp_dir, erepo_dir, dvc, monkeypatch):
                         "call": "calculator.add_to_num",
                         "args": {"x": 1},
                         "deps": ["number"],
-                    }
+                    },
                 }
             ]
         }