diff --git a/test/py/tests/test_log.py b/test/py/tests/test_log.py
index 3fc61e258a0..c1b7e1d6b1b 100644
--- a/test/py/tests/test_log.py
+++ b/test/py/tests/test_log.py
@@ -39,6 +39,8 @@ def test_log_format(ubman):
         run_with_format('lm', 'NOTICE. msg')
         run_with_format('m', 'msg')
 
+        ubman.run_command('log format default')
+
 @pytest.mark.buildconfigspec('debug_uart')
 @pytest.mark.boardspec('sandbox')
 @pytest.mark.restart