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I have the same situation with my son. He filed to get a taxpayer refund from Colorado. He didn't earmark himself as my dependent. Now my return rejects. 

 

I have to do an amendment for him, PAPER. Looking at the 1040x I don't see where I earmark him as a dependent on my return. I need help. I looked at every line on the 1040x. Nothing is obvious. 

The only place that looks like an option is the box for an explanation. I just don't want to take a chance because it will cause me to have a big tax debt if this is not done correctly. 

How do I fill out the 1040x correctly?