The Hololanguage (briefly, Holo) is a programming language derived from a new software development paradigm, the Holoparadigm. This paper provides an initial treatment to the problem of supporting the debug process of Holo-programs. To this end, an extension is proposed to the Holoplatform, the Holo Extension for Debugging (HED). Finally, the Holo Debugger a simple debugger is presented to illustrate the feasibility of the proposed extension.