Syntax error with brace block inside another block

[Joshua Choi]

The following code does not work:

        Shoes.app do
                stack do
                        button 'Test' {
                                alert "Boo"
                        }
                end
        end

The error is from lib/shoes.rb line 359:
  compile error
  test.rb:4: syntax error, unexpected '{', expecting kEND
  test.rb:6: syntax error, unexpected '}', expecting kEND

A similar error occurs with the following:

        Shoes.app do
                stack {
                        button 'Test' {
                                alert "Boo"
                        }
                }
        end

I have Shoes r970 Mac OS X.

Sincerely,
Joshua Choi