Manager Alex Smith is attempting to rally the Tangerines support for Saturday's Tayside derby meeting with St Johnstone at McDiarmid Park.
Saints' headquarters proved to be a vital venue for United as they steered themselves clear of the SPL's relegation zone last season and boss Smith valued the assistance given by the club's fans.
He pointed out, "We took a massive and very enthusiastic crowd with us that day, and I would love to think that we could attract a similar support this time."