"I am delighted with the win and a clean sheet," Mignolet told safc.com.
"It was a perfect game for us. It's always tough against Bolton but we defended well, created lots of chances and managed to score two goals.
"We created a lot in the second half but couldn't score and I was a little afraid we would concede from a silly free kick or a corner. Anything can happen at 0-0.
"Luckily for us Stephane scored and we went on from there."