Kevin Zegers and Jaime Feld
12/19/2013 AT 01:05 PM EST
Looks like Kevin Zegers is ready for a new name: Father
After marrying his longtime girlfriend
, Jaime Feld, this summer, The Mortal Instruments: City of Bones
actor says the two of them are "trying hard" to become parents.
"I've always wanted to become a dad," Zegers, 28, tells ET Canada
. "The more stuff I can do that's not about me, the better."
The actor – who in August joked to PEOPLE that when his wife first referred to him as her husband "I wondered who she was talking about" – says he just adores married life.
"It's different than I thought it would be," Zegers says. "I feel like, now, when I work, I'm not just working for myself. My selfishness meter has gone down."