This paper presents the methodology and the linguistic criteria followed to enrich the AnCora-Es corpus with the semantic annotation of deverbal nominalizations. The first step was to run two independent automated processes: one for the annotation of denotation types and another one for the annotation of argument structure. Secondly, we manually checked both types of information and measured inter-annotator agreement. The result is the Spanish AnCora-Es corpus enriched with the semantic annotation of deverbal nominalizations. As far as we know, this is the first Spanish corpus annotated with this type of information.