5th Ed Macros roll twice?

I'm new to Roll20 and 5th edition so I hope my question isn't stupid. Like the topic says, when you click a macro in the 5th ed character sheet it appears to roll twice, sending two pairs of die onto the table. I assume that it is supposed to do this? Is there a way to only make it roll once?

The two d20 rolls are for if there is advantage or disadvantage on the roll, which is a new mechanic with 5th edition. Rolling both dice at the same time makes it quicker if it's decided that you need either advantage or disadvantage after the fact. If you do not need those then just use the first result as your main roll. If you wish to change this default behavior then the way to do it depends on the sheet you are using. All of the sheets have a way of turning that off so you only roll one die. Check with the configurations on the sheet you are using.   

Thank you Ed S.