Nacer Chadli's 28th-minute strike confirmed FC Twente's place in the last 16 of the UEFA Europa League as Steve McClaren's men claimed a 1-0 victory on the night to wrap up a 2-0 aggregate win over Steaua Bucharest.
Chadli converted a pass from Luuk de Jong to put his side well in control against the Romanians after Ola John's goal had given them the first-leg advantage in Bucharest a week ago.
Twente had gone into the match brimming with confidence after a 4-1 domestic win over Vitesse Arnhem last weekend but it was Steaua who threatened first from Cristian Tanase's dangerous seventh minute corner.
But chances were at a premium in the opening stages with both sides guilty of giving away free-kicks in centre-field before Belgian striker Chadli finally pounced to finish off a fine move in the 28th minute.
De Jong found space in the right side of the penalty area and squared the ball for Chadli, who kept his cool to thread the opener past Steaua keeper Cristian Tatarusanu from 12 yards.
Chadli was caught narrowly offside as he chased down another chance on the half-hour while a chance for Steaua at the other end was foiled when Leandro Tatu was pulled up for a foul on Franco Douglas.
Twente continued to control a game of few chances and could have put the result beyond doubt in the 50th minute when De Jong sent a right-foot shot over the bar from 18 yards.
Steaua finally stirred three minutes later when Florin Costea shot over from 20 yards, prompting McClaren to make a tactical substitution and replace striker John with Swedish midfielder Emir Bajrami.
Bajrami's first act was to fire in a dangerous free-kick after Chadli had been fouled by Novak Martinovic, but Tatarusanu came from his goal to make a comfortable save and avert the danger.
Tatarusanu parried an even better Bajrami effort in the 62nd minute and was busy again five minutes later, diving to parry a right-foot shot from 12 yards by the dangerous De Jong.
With time running out, Mihai Costea missed for Steaua with an overhead kick, then Stefan Nikolic was denied by a brilliant save from Twente keeper Nikolay Mihailovic, who tipped his close-range effort round the post.