diff --git a/test/cli/test-other.py b/test/cli/test-other.py
index c0985fbaf26..d79f2510153 100644
--- a/test/cli/test-other.py
+++ b/test/cli/test-other.py
@@ -324,6 +324,8 @@ def test_addon_naming(tmpdir):
     assert stderr == '{}:2:1: style: Variable Var violates naming convention [naming-varname]\n'.format(test_file)
 
 
+# the namingng addon only works standalone and not in CLI mode - see #12005
+@pytest.mark.skip
 def test_addon_namingng(tmpdir):
     test_file = os.path.join(tmpdir, 'test.cpp')
     # TODO: trigger warning