Pass variables across Jade template blocks in Express 3

I am running Express 3.0 with Jade template engine. I'm trying to pass a variable from a template page to the main layout page. Like this:

layout.jade (snippet):

!!! 5
html(lang='en') 
    head 
        meta(charset='utf-8')
        title= locals.title

        - if (typeof(stylesheets) !== 'undefined')
            each stylesheet in stylesheets
                link(rel='stylesheet', href='/stylesheet/#{stylesheet}.css')

    body
        block body

landing.jade (snippet):

stylesheets = ["landing"]
extends layout

block body
    h1 Test 1234

The generated code does not include the extra stylesheet tag. I tried - var stylehseets... and renaming 'stylesheets' fearing it might be a keyword.

Any suggestions?

Use the block append feature for this. Straight from the docs is an example exactly like what you are trying to do.

layout.jade

html
  head
    block head
      link(rel='stylesheet', href='/css/layout.css')
    body
      block body

landing.jade

extends layout

block append head
  link(rel='stylesheet', href='/css/landing.css')
block body
  h1 Test 1234