Emmy Rossum paid tribute to her “best boy” and rescue dog Cinnamon on April 9.

“We lost our best friend of nearly 14 years today,” Rossum began on Instagram, writing that her pup “was loved” by her family — including husband Sam Esmail, their dogs Sugar and Pepper, and their cat Fiona.

“He loved eating, sleeping, and traveling. He loved barking at children and eating discarded pizza crusts off the street,” she continued. “He loved being carried and he loved being loved.”

“I will always be his mother,” Rossum added. “He was my best boy.”