Battling Rotherham United earned their first win under new manager Alan Stubbs at the expense of Championship visitors Brentford,.
The Bees arrived at AESSEAL New York Stadium in sixth place, but the Millers took all three points thanks to a first-half Danny Ward strike and recorded their first clean sheet since Stubbs' arrival
It wasn't always pretty after the break, but Rotherham defended doggedly to keep Dean Smith's side at bay.
After a quiet opening, Lasse Vibe directed an effort wide from a threatening position for the visitors on 16 minutes and Millers new boy Izzy Brown was denied a goal on his debut seven minutes later when he robbed Vibe and raced clear only to be foiled by a good Daniel Bentley save.
Both sides looked dangerous at times in attack, and it was the Millers who took a 32nd-minute lead.
Scott Allan played in Ward with a lovely through-ball and the striker did the rest, firing low past Bentley and into the far corner.
There were few clear-cut chances in a tense second period. Scott Hogan came closest for the Bees with a 78th-minute header just wide, while Jon Taylor scampered through for the home team in the 89th minute and saw his goalbound effort blocked.
Stubbs handed debuts to winger Brown and midfield man Tom Adeyemi and gave a first league start to midfielder Scott Allan.
Another new signing, Darnell Fisher, was at right-back, with Stephen Kelly switching flanks and Joe Mattock dropping to the bench.
Of the starting 11, eight were players brought to the club by the Millers' new boss this summer, and they all played their part in a hard-fought victory.
The roar from supporters at the end showed, after one point from the opening three games, just how much this result mattered.
Rotherham United (4-2-3-1): Camp; Fisher, Ball, Wilson, Kelly; Vaulks, Adeyemi (Smallwood H-T); Taylor, Allan (Forde 84), Brown (Mattock 88); Ward. Subs not used: Price, Wood, Forster-Caskey, Yates.
Brentford (4-2-3-1 ): Bentley; Colin, Dean, Egan, Elder; Woods, Yennaris; Vibe (McEachran 84), Sawyers (Ledesma 77), McLeod (Saunders 58); Hogan. Subs not used: Kurasik, Bjelland, Kerschbaumer, Clarke.
Goals: Ward 32 (Rotherham).
Referee: James Adcock (Nottinghamshire).
Attendance: 8,367 (459).