West Ham manager Sam Allardyce has claimed that his club's home form "sickens" him, following their seventh game without a win at Upton Park.
Allardyce is convinced that if the Hammers' home form continues, they will be destined to fight for a promotion spot in the playoffs.
The West Ham boss told BBC Sport: "If we don't get automatic promotion we'd have lost it here. We've got to go and get four wins on the trot and hope that's enough.
"Until we break the 'hoodoo' of the home win, every game will be tough. We've been absolutely outstanding away this year."
He continued: "It really does sicken me that we can't show the way we play away from home to the West Ham fans at home. That's where we really want to do it."
The Hammers were 3-1 down at half time and came back to draw with Birmingham in their latest Championship game but Allardyce wants more from his team.
"We committed suicide in the first half by gifting Birmingham three soft goals," he added.
"I can't be too critical of the players publicly because of what a magnificent comeback it was. At least we showed some quality, some desire and fighting spirit.
"If we'd have won the game from where we were, we would have gone straight up. It would have been a massive turning point and given us the spur to go on."
West Ham currently lie in third place, three points behind in-form Reading and six points behind Southampton.