Colback's strike delighted Newcastle's staff, and created a newer, happier goalscoring memory for Carver.
He said: "I thought it was fantastic. I was a lot happier today than I was the last time he scored at the Gallowgate End! That was pleasing.
"We've talked about breaking from midfield and getting into the box. When you're not scoring goals, you look at why you're not scoring goals.
"Everybody usually points the finger at centre-forwards, but you've got to get something from your midfield players. It was nice to see him score.
"He has been working to get into the box over the last few games, so when he got in there, he kept his composure and stuck it through the goalie's legs, which was nice to see."