In the article entitled “Efficacy and Safety of Tadalafil 5 mg Once Daily for the Treatment of Erectile Dysfunction After Robot-Assisted Laparoscopic Radical Prostatectomy: A 2-Year Follow-Up” by Kim S, Sung GT (Sex Med 2018;6:108–114), the funding statement was incorrect. The funding statement should have read: Funding: This study was supported by research funds from Dong-A University. The article was updated to include this statement.