Saracens director of rugby Mark McCall has warned his side against continued "individual lapses".
Sarries looked to be heading for defeat at Bath on Saturday after conceding a late penalty, but Owen Farrell's last-gasp kick secured a 28-26 win.
"It was a stupid penalty we gave away, an individual lapse of concentration," McCall told BBC Three Counties Radio.
"We had a few of those during the game and those individual lapses seemed to stop us getting control of the game."
He added: "But overall we're very happy with the players' attitude and how they worked in a very difficult place."
With Saracens leading 25-23 late on at The Rec, Mako Vunipola's pull on Tom Biggs allowed Sam Vesty to kick the hosts ahead.
But Farrell's last-minute penalty, which hit both posts before dropping over, earned the Premiership champions their first win of the season, following last week's defeat by Wasps.
"You've got to remember, if the ball rebounds off the posts, it's still the same performance in the previous 79 minutes," said McCall.
"There are aspects of the performance we were very pleased with, aspects we weren't.
"But as a group they showed resolve to come back from disappointment last week."