Let It Go
When our child is doing something wrong, we are compelled to correct them. That's the job of parenting. The problem is, if we correct everything, it is all we will ever do. You also send the message of doubt. Doubt in your child's ability to know what is right. Getting it wrong, just means they made a mistake. Like the 5 mistakes you made yesterday, or at least I did.
It is okay to let it go. You have corrected them before. You both know what they did was wrong. Look at them and smile. Then move on.
Avoid letting the mistake take hold of the entire moment.