In the erratum for the article "El Niño in a changing climate" by Sang-Wook Yeh, Jong-Seong Kug, Boris Dewitte, Min-Ho Kwon, Ben P. Kirtman, and Fei-Fei Jin, it is noted that the key for the 20C3M ensemble (red line) and the SRESA1B ensemble (blue line) in Figure 4 were mislabeled. The correct figure is provided below.In the erratum for the article "El Niño in a changing climate" by Sang-Wook Yeh, Jong-Seong Kug, Boris Dewitte, Min-Ho Kwon, Ben P. Kirtman, and Fei-Fei Jin, it is noted that the key for the 20C3M ensemble (red line) and the SRESA1B ensemble (blue line) in Figure 4 were mislabeled. The correct figure is provided below.