Nested Layer Naming throws error

[wagerfield]

Using nested artboard / layer / slice names like somedir/subdir/asset throws the following error:

fs.js:651
  var r = binding.read(fd, buffer, offset, length, position);
                  ^

Error: EISDIR: illegal operation on a directory, read
  at Error (native)
  at Object.fs.readSync (fs.js:651:19)
  at Object.fs.readFileSync (fs.js:472:24)
  at Socket.<anonymous> (/Users/matthewwagerfield/Dropbox/Business/Native/VimpelCom/beacon/prototypes/boilerplate/node_modules/gulp-sketch/index.js:78:20)
  at emitNone (events.js:85:20)
  at Socket.emit (events.js:179:7)
  at endReadableNT (_stream_readable.js:906:12)
  at nextTickCallbackWith2Args (node.js:474:9)
  at process._tickCallback (node.js:388:17)

Investigating this it would appear that the issue is with fs.readFileSync attempting to read a directory—in the example above this would be somedir.