diff --git a/test/optimist/parser_test.rb b/test/optimist/parser_test.rb
index dbadc84..ca629ab 100644
--- a/test/optimist/parser_test.rb
+++ b/test/optimist/parser_test.rb
@@ -120,14 +120,6 @@ def test_required_flags_are_required
     assert_raises(CommandlineError) { @p.parse(%w(--arg2 --arg3)) }
   end
 
-  def test_permitted_flags_filter_inputs
-    @p.opt "arg", "desc", :type => :strings, :permitted => %w(foo bar)
-
-    result = @p.parse(%w(--arg foo))
-    assert_equal ["foo"], result["arg"]
-    assert_raises(CommandlineError) { @p.parse(%w(--arg baz)) }
-  end
-
   ## flags that take an argument error unless given one
   def test_argflags_demand_args
     @p.opt "goodarg", "desc", :type => String