Chelsea boss Claudio Ranieri called for goalline cameras to be introduced after the 2-2 FA Cup draw at Watford.
The Hornets took an early lead through Heidar Helguson's header that hit the bar and bounced onto the line.
Television replays showed the ball did not cross the line, and Ranieri believes cameras should now be a part of the modern game.
"Soon, especially in the Premiership, all stadia must have a camera to say whether it's a goal," said Ranieri.
"I make mistakes, as do players, referees and linesmen. I'm not just saying it because this has happened to us."
Chelsea equalised Helguson's strike with Eidur Gudjohnsen's penalty, while they also fought back a second time through Frank Lampard's goal after Gavin Mahon had headed Watford ahead again.
Watford boss Ray Lewington admitted his team may have benefited from good fortune for their opener, but insisted they deserved a second-half penalty when Mahon tried to go past William Gallas.
"I've been told that our first goal may not have crossed the line, but it was given. I don't really know as I haven't seen it again," said Lewington.
"My boys were quite convinced that they should have had a penalty in the second-half, when Mahon went through and thought he was tripped."