Before: call ale#assert#SetUpLinterTest('openscad', 'sca2d') After: call ale#assert#TearDownLinterTest() Execute(The options should be used in the command): AssertLinter 'sca2d', ale#Escape('sca2d') . ' %s' let b:ale_openscad_sca2d_options = '--foobar' AssertLinter 'sca2d', ale#Escape('sca2d') . ' --foobar %s'