If you returned the money within 60 days of the distribution, then answer the "what did you do with the money" question, that you moved it to another (or the same) retirement account, the check the box that the money was all rolled over.
That should put the box 1 amount on line 4a with the word ROLLOVER in the 1040 form and a zero on line 4b - the taxable amount.
The box 1 amount will show as income on the summary screen since it is income - just not taxable income.