Rib fractures are common injuries seen in the emergency department, and occur most often following blunt thoracic trauma. However, violent or sustained coughing can also cause complications such as pneumothorax and rib fracture. We report a 50-year-old man who presented to the emergency department with an intermittent nonproductive cough for 8 days and sudden onset of right side chest pain after an episode of violent paroxysmal coughing. The initial chest radiograph did not reveal a rib fracture. Subsequent chest computed tomography demonstrated a linear nondisplaced fracture at the lateral aspect of the right 8th rib. The patient gradually improved after medical treatment and was discharged the next day.