How to write on line 8 of schedule 1

So I had mailed in a tax return. On line 8 of schedule 1 I had Gambling winnings of $8,000 which I wrote there and listed on the line $8,000. On the second line below it I wrote out how that broke out 

For supplemental detail

 

I.e W2G 5,500 , Non W2G 2,500

 

did I make an error writing that on the second line and the IRS will think my other income line should be 16,000 and not 8,000. 

someone tell me I am over thinking it