George Boyd scored what turned out to be the only goal just after half-time and helped them bounce back from the home defeat by Nottingham Forest before the international break.
That put them four points ahead of Watford ahead of Tuesday night's clash that could go a long way to deciding their automatic promotion hopes.
"That goal was the one bit of quality," Bruce said. "It was a great pass from Jay and it was a great finish from Boydy. He's had a wonderful start.
"We've a huge game against Watford now on Tuesday.
"If we can go and get a result there, it's another game gone and you just want to protect that lead, that's the aim - can we protect it with seven games to go?
"It's a good position to be in, but there's still seven games to go and we know how quickly it can change.
"Who would have thought Leicester for example, would have won one of their last 10 and Palace I don't think have won in four or five, the way the Championship is, nothing surprises me.
"But if we can win (on Tuesday), it will be a huge result for us."