We study the bar fraction in the MACS J0647.8+7015 cluster of galaxies at z=0.59 using the observations obtained with the NIRCam instrument mounted on the JWST telescope. We visually inspected the near infrared images obtained with the F200W filter of all the cluster members to identify the presence of bars. The cluster member selection was based on the combination of the color-magnitude relation with available spectroscopy. We find that the fraction of strong/secure bars is 12% with respect to the total number of galaxies. It rises to 24% when weak/uncertain bars are included. In the future, we aim at exploring whether this fraction is a function of the stellar galaxy luminosity supporting the scenario where the cluster environment affects bar formation in a mass-dependent way.