Hogan, reference file in sub directory

Using either partials or template inheritance, is it really impossible to reference a .mustache file from a sub directory?

In other words, having a directory structure like

|- views
||- templates
|||- base.mustache
||- somePage.mustache

where somePage.mustache is something along the lines of

{{< templates/base }}
 {{$content}}
  ...
 {{/content}}
{{/ template/super }}

or

{{> templates/base}}
...

Both things work if the base mustache file isn't in a subdirectory, but don't work with the "templates/" addition. Is this truly not possible using Hogan.js or am I missing something... because I have tried any and all logical variations I could think of... And the official spec isn't really addressing how this is supposed to work clearly.