Error message installing Mojave "disk is too small"
Hello! I'm trying to install Mojave in an external SSD of 1tB. I already did the same some months ago in an external SSD of 500gb and everything went great. But now, I format the disk, I install it from command+R, it took a few hours and then right at the end it shows a message saying that the "destination disk is too small" (translated from Spanish, I don't know the exact words it says in English). I checked and the disk is completely free. Any guess why this might be happening and how to solve it? Thanks in advance!
iMac 27″, macOS 10.15