[plt-scheme] scribble, itemize within itemize

I got this error:

  [Running /Users/gknauth/test/plt/projects/doc-collects/doc-parser- 
tools/parser-tools.scrbl]
setup-plt: Docs failure: itemize: expected an item, found something  
else: #<procedure:itemize>

when I tried to do this:

@itemize{
   @item{apple blah blah blah}
   @item{orange blah blah blah}
   @item{banana blah blah blah}
   @item{mango blah blah blah}
   @itemize{
     @item{mango-pudding blah blah blah}
     @item{mango-juice blah blah blah}
     @item{mango-ice-cream blah blah blah}
   }
}

Is it possible to do @itemize within another @itemize?

I'm scribbling doc of (lexer (re action) ...) in parser-tools.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.racket-lang.org/users/archive/attachments/20080211/11d465d0/attachment.html>