If you can count on anything during the holidays, it’s advertisements that take aim at your heart — and this one hits the bullseye.

The spot from UPS highlights the bond between a 4-year-old boy named Carson and UPS driver Ernest Lagasca, who Carson calls “Mr. Ernie.”

“When Carson was born he couldn’t drink milk or anything with a milk protein in it, so they sent formula,” the boy’s mom, Karen Kight, told KRDO. “Mr. Ernie would deliver quite a few times to our house.”

Carson loves Mr. Ernie and his truck so much that he has a UPS uniform of his own and dreams of being a UPS driver. And when Mr. Ernie comes to the door in the ad, Carson practically leaps into his arms.