All of Wanderers' four victories this season came after they had scored the first goal, but Jaaskelainen believes success against Wolves could depend on his side's reaction if they concede.
"Everyone knows it's important to get the first goal in the Premier League," he told the Bolton News. "But it's more important to be keeping clean sheets and being solid.
"Fulham scored two goals in two minutes against us, and it was the same against Newcastle. And that can't be allowed. If the other team score you have to have a more positive response."