The Sheffield-born Walker is a boyhood Blades fan and his family still live in the city.
So, even though a goal is something of a rarity, he opted to keep the lid on his reaction as City edged a 1-0 victory at Bramall Lane.
"My mum and dad live here, so if I’d celebrated I’d have got a lot of stick!” smiled Walker.
“I’m a Sheffield United fan, too, so I couldn’t celebrate.
"I’m just happy to get on the scoresheet and obviously happy to get the three points, which was the main thing we wanted.
“I scored here when I was on loan at Aston Villa so there’s obviously something about Bramall Lane that I like.
"It’s a god three points for us because they’re a well drilled side.
“Everyone knows their position and they’re a tough team to break down, but luckily enough I came up with the goal.”
Walker, making his 100th Premier League start for City, continued his fine form this campaign against the Blades
"I’m enjoying my football,” he said.
“We don’t sit back and defend. We want to score three or four, but it’s great to get the clean sheet on the board as well.
"Defensively we’ve done fantastically well of late, especially Ruben Dias since he’s come in. Whoever steps in, they’re all going to put in top performances.
"There was always going to be a hangover from last season. It’s just what we’re dealing with at this moment in time."