Kevin Lisbie's 12th goal of the season gave league leaders Leyton Orient a narrow victory over Rotherham.
The veteran striker struck home after a goalmouth scramble to help the O's return to winning ways after their first defeat of the season on Tuesday.
Visiting keeper Adam Collin did well to deny Dean Cox, Moses Odubajo and Gary Sawyer as the hosts looked to extend their lead after the break.
The Millers created little and are now winless in four games.
VIEW FROM THE DRESSING ROOM
Leyton Orient boss Russell Slade speaks to BBC London 94.9:
"It's a very important win we can say, but the smaller picture was to bounce back today, but my message for the players before the game was we don't need to change anything.
"Kevin Lisbie is a phenomenon as he was only 50% yesterday at one point but he is a great professional.
"With 10 minuets to go we were looking for a second as it was nervy but we saw the game out very well."
Rotherham United manager Steve Evans tells BBC Radio Sheffield:
"It's a game of two halves, to be fair. I think they dominated the first half, we looked as if we'd turned up for a tea party in London, and second half they haven't got out of their half.
"But with the chances that came our way, we didn't make the goalkeeper work and we're never going to score a goal if you don't do that.
"We certainly had a go and they were hanging on at the end.
"Everyone knows we lack a goalscorer at the club but the players gave absolutely everything."
Leyton Orient 01 Jones 02 Omozusi 03 Sawyer 04 Vincelot 15 Clarke 05 Cuthbert 11 Odubajo 08 James (Bartley - 68' Booked ) 10 Mooney (Batt - 68' ) 09 Lisbie (Stockley - 82' ) 07 Cox Substitutes 12 Larkins 14 Batt 19 Lasimant 20 Gorman 21 Bartley 22 Stockley 24 Sutherland Rotherham United 21 Collin 14 Bradley 03 Skarz (Tubbs - 84' ) 08 Frecklington 04 Arnason Booked 20 Morgan Booked 10 O'Connor (Nardiello - 57' ) 18 Pringle 09 Revell (Eaves - 80' ) 22 Agard 15 Milsom Substitutes 01 Shearer 02 Brindley 06 Mills 16 Tubbs 17 Nardiello 23 Tidser 25 Eaves
Ref: Darren Sheldrake