Making a granny stitch project and made a mistake 4 rows back ? How to fix it

Hello crochet friends !
I bet you have made this mistake in crochet before. You are making a granny stitch project and you only do 2 double crochets instead of 3 and it is 4 rows back. In this video it will show you how to fix the mistake without pulling out your rows
Hope this helps you next time you make a mistake. I had 3 mistakes on my project so this technique came in very handy 
Have a fabulous week 
Clare