Problem installing realtime clock on the v. 1.20 card image

I’ve tried a couple of times to install the real-time clock support on the card image (1.20-1) and when I run the following to check if the chip is connected to the i2c:

           i2cdetect -y 1

the process fails.

Should I not be able to install the clock the same way I did on my original NOOBS?