Leicester boss Richard Cockerill marked out a timely try from Ben Youngs as the key moment in his side's away win against Munster.
A strong start to the Tigers' 2015/2016 European campaign means they now have a commanding nine-point lead at the top of Pool 4 ahead of Munster's visit to Welford Road.
Cockerill insisted the side wouldn't lose their focus but admitted the result was "a good win for the club", as Munster failed to collect even a losing bonus point in a home European fixture for the first time.
"It's only the third of the pool stage so we haven't won anything yet or even qualified but not many teams come here and win in Europe and I'm delighted for the team," Cockerill told the EPC Rugby website.
"Munster played very well and there was a prior at the start of the second half when they scored eight points pretty quickly. It was a four-point game and we needed to get ourselves a foothold back into it.
"So it was very important we scored next. The try by Ben Youngs was pretty pivotal and he took it very well.
"It's all about finding a way to win games and this team learns it's lessons quickly.
"We want to celebrate a good win for the club but we can't get ahead of ourselves. Next week is another massive game for both teams.
Cockerill added: "Nothing is won yet but if we win next week that puts us in really good position with Treviso in the round after that.
"But Munster will know if they can come and beat us, they will be right back in the mix, everyone is happy and it's a great win, but it means nothing if we lose next week."