diff --git a/tests/units/utils/test_format.py b/tests/units/utils/test_format.py
index 17485d52e..f8b605541 100644
--- a/tests/units/utils/test_format.py
+++ b/tests/units/utils/test_format.py
@@ -601,6 +601,7 @@ formatted_router = {
                     "sum": 3.14,
                     "upper": "",
                     "router": formatted_router,
+                    "asynctest": 0,
                 },
                 ChildState.get_full_name(): {
                     "count": 23,