Efficient self-regulation has been argued to consist of more than just setting goals and tenaciously pursuing them – it also requires that people adapt their goals to changing circumstances. Although previous studies have already focused on interindividual differences in goal disengagement (one aspect of goal adaptation), so far, no study has looked at predictors and consequences of daily work goal adaptation. As predicted, daily goal adaptation was related to the amount of unplanned tasks and the extent to which the time needed for tasks was underestimated. However, unlike previous research on goal disengagement, daily goal adaptation had a negative (and not a positive) effect on well-being and subjective productivity. It is suggested that the emotional aspect of goal adaptation/goal disengagement needs more research attention.