The Labour Code has recently been subject to significant changes. In general, the direction set by successive amendments should be assessed positively, however, individual new regulations may raise numerous interpretational doubts. The subject of this article is an analysis of the intention declared by the parties to an employment relationship when entering into a contract of employment for a trial period. This is a new obligation through which the legislator wishes to limit the length of the trial period. In practice, the consequences of failing to implement this intention will be extremely difficult to assess.