diff --git a/tests/bugs/core_4887_test.py b/tests/bugs/core_4887_test.py
index 2593a214..b6bb8755 100644
--- a/tests/bugs/core_4887_test.py
+++ b/tests/bugs/core_4887_test.py
@@ -136,6 +136,6 @@ expected_stdout = """
 @pytest.mark.version('>=3.0')
 def test_1(act: Action):
     act.expected_stdout = expected_stdout
-    act.execute()
+    act.execute(combine_output = True)
     assert act.clean_stdout == act.clean_expected_stdout