Programming is recognised as one of seven grand challenges in computing education and attracts much attention in computing education research. Most research in the area concerns teaching methods, educational technology and student understanding/misconceptions. Typically, evaluation of learning outcome takes place during or immediately following the educational activity. In this research, we conduct a qualitative investigation of sustainability of programming competence by studying the effect of recalling programming competence long time after the educational activity has taken place. Our population consists of 10 students who have taken an introductory object-oriented programming course 3, 15 or 27 months prior to our study. None of the students have been exposed to programming in the intervening period. As expected, our research shows that syntactical issues in general hinder immediate programming productivity, but more interestingly it also indicate that a tiny retraining activity and simple guidelines is enough to recall programming competence and overcome syntactical issues. (Contains 4 tables and 3 figures.)