The Senegal international's future at Upton Park has been cast into doubt over the past month, with Arsenal reportedly keen on acquiring the services of the 25-year-old, who has a £3.5m buyout clause in his contract.
Diame has previously declared that he is happy with the Hammers, and Allardyce believes that the player should put on a passionate display in their next outing.
"Diame is a professional," said Allardyce. "He is paid to play for West Ham United.
"I expect everyone to put the shirt on and play with a passion, with the ability and desire that they have got.
"He has had a long spell off with a hamstring injury and is only finding his feet again. My plan is that I am playing him because I hope and I believe he is going to be here after Thursday."
Diame joined West Ham from Wigan Athletic in the summer.