Great Granny Block

I went in and fixed my great granny block. I don't know how I couldn't have seen the mistake when I was sewing it together.

Here's my OOPS moment. I didn't even realize I made a mistake until I had it all trimmed and taken a photo. See the blue and the green square at the bottom left corner? I had to carefully take out the stitches for just those two squares and place them in the correct order. 

Alrighty, I really have to get some work done ;-) I need to make a simple bag for a gift.