Slaven Bilic insists West Ham have solved their crowd trouble issues ahead of Monday's match with Chelsea.
The EFL Cup clash between the London rivals at the London Stadium in October was marred by coin throwing and fighting between rival fans.
But moves to improve the segregation, policing and stewarding have meant that such ugly scenes have all but disappeared since that night.
Vice-chairman Karren Brady has worked hard to put an end to disorder in the stands, and Bilic is confident she has succeeded.
"It is not that I think it, it is definitely the truth," the Hammers manager said.
"I have monthly meetings with Baroness Brady.
"We have talked a lot about that and I know how much effort, through her of course, has been put into solving
those problems.
"She, or we, have done it, so I am not expecting [a repeat].
"Of course, there could be individual things that may happen, but the club has done a really great job regarding that.
"They have approached it since that game really seriously. We have done it, yes."