The author analyzes the unusual occurrence of the infinitive as an object of the impersonal verb pudet in Tibull. 1, 73–74. On the basis of the syntactic function of the infinitive, he suggests to consider its morphological form as analogous to the genitive case. This observation is a part of philological essay in the genre of memorabilia dedicated to the outstanding classical scholar Alexander K. Gavrilov. It is Gavrilov’s attentive attitude to every word in the text and his approach to the commenting on ancient texts, that inspired the author to write this article.