The paper encourages to look at the article 60 § 4 of the Polish Penal Code from a slighty different point of view than it is commonly taken. It is an affirmative answer to the question whether it is possible under this provision to apply an extraordinary mitigation of the penalty with respect to an offender who, regardless of the explanations given in his or her case, provides prosecutors with the essential facts, previously unknown to them, concerning another offence commited by him or her which is subject to imprisonment for more than five years. The paper also addresses the practical aspects of such a view on the article 60 § 4 of the Polish Penal Code.