Brisbane Roar pair Jade North and James Donachie are adamant their defensive unit won't be making the same mistakes twice.
Errors at the back proved costly in last Friday's A-League clash with Newcastle, leading to both Jets goals in the 2-all draw.
The men in orange will have to tighten up against the rapidly improving Glory in Perth on Saturday night.
Brisbane, in first place, has conceded only 23 goals this season - the second best in the A-League behind the stingy Sydney FC (21).
But the players were seething they let a victory slip against the eighth-placed Jets after taking a 1-0 lead after six minutes. The Jets quickly responded with two goals.
"We were pretty disappointed about it, going 1-0 up early and then they equalised," North said.
A win would have put the Roar four points clear of second-placed Western Sydney, after it was thrashed 5-2 by Wellington.
"Our first half let us down, but we move on to Perth," Donachie said. "We got back and we looked at the videos ... it won't happen again."
The resurgent Glory is undefeated in its past five games, and now sits in seventh place.
"The last couple of games they've been going strong and getting some wins, so it's definitely not going to be an easy game," Donachie said.
"It's a bit more travel than usual. It's going to be tough, but hopefully we can get the win."
The Roar will be sweating on the fitness of in-form striker Jamie Maclaren after he failed to finish yesterday's training session due to hamstring tightness.
But Donachie was confident he would play against Perth.
"He'll be fine and firing on all cylinders," Donachie said.
North, 34, will play his 300th domestic (A-League and NSL) game against the Glory this weekend - 70 of those with the Roar.
But whether he stays in Brisbane beyond this summer is uncertain as he is off contract at the end of this season.
"I'm just concentrating on football. We're in talks at the moment, so hopefully something will come from it," North said.
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