<p><em>This study investigates the mediation of job satisfaction in the relation of work motivation and affective commitment. Affective commitment considered as important behavior because it reflect how employees attached to their organization. Highly affective people will perform better and contribute more. It is crucial for every organization to identify what factors which can drive employee to develop affective commitment. Work motivation considered can have impact on employee’s emotional commitment towards organization. Meanwhile, job satisfaction also believed can increase such commitment. Current study used 124 workers from roof tile manufacture in Majalengka as </em><em>p</em><em>articipants</em><em>.</em><em> Using bootstrapping approach the study found that work motivation ha</em><em>s</em><em> direct effect on job satisfaction and on affective commitment. Meanwhile job satisfaction also had direct effect on affective commitment. This finding also showed the mediation role of job satisfaction in co</em><em>n</em><em>necting work motivation and affective commitment. Comparison with previous studies will discussed and the managerial suggestion will be provide to improve employee’s affective commitment.</em></p><em><strong><em>Keywords</em></strong><em>: work motivation, job satisfaction, affective commitment, mediation, human resources</em></em>