BY REPORTING MY ROLLOVER FROM A 401K TO AN IRA THEN A DISTRIBUTION FROM THAT IRA, TURBOTAX IS ADDING BOTH TOGETEHER AN OVERSTATING MY INCOME

I entered the information re the rollover of my 401K into a traditional IRA which is reported on line 4a.  I then entered a distribution from that IRA which shows up on line 4b.  When TurboTax calculates my total earnings for the year it is adding both together and overstating my income for the year? Why?...Should I not report the rollover just the distribution?