In the article “Anti-Interleukin-22-Neutralizing Antibody Attenuates Angiotensin II-Induced Cardiac Hypertrophy in Mice” [1], there was an error in Figure 1(a), where the IL-22, β-MHC, and GAPDH bands were triplicated, due to a production error. This evidence concerns the gene AGT and cardiac hypertrophy.