Sean Lineen says his players showed true Glasgow spirit as they toppled three-time European champions Toulouse in their own backyard.
Glasgow stunned the 18,700 crowd at Stade Earnest Wallon by winning the Pool 6 encounter 33-26.
But, with fifteen minutes to play the visitors had amassed a 24 point lead, and had to withstand a huge fight back from the home side as the clock ticked down.
"We knew their would be a backlash, and sure enough it came," said Lineen. "It was never a done deal, not until the final whistle.
"Toulouse have great strike runners all over the park and they can and will hurt you if they have a sight of the line.
"But I'm delighted with how we defended. We showed great character.
"Our team showed true 'Glasgow spirit' and it's about time we recorded a win like that."
Glasgow will not qualify from Pool 6 after narrowly missing out to Bath in Rounds 3 and 4, and Lineen said: "We ran Bath close twice and we knew we can perform on the biggest stage against the biggest teams. Today we proved it and I'm just so proud of that performance"
Finals Edition: Listen to the best guide to the European Rugby Cup Finals weekend in Dublin, which sees Leinster Rugby take on Stade Francais Paris at the RDS on Friday night in the Amlin Challenge Cup Final and then ASM Clermont Auvergne tackle Toulon in an all-French affair at the Aviva Stadium on Saturday.