Chris Giles sent them on their way to a first ever win over a League side by heading home from a corner.

Mark Hudson's shot was saved for the Millers, but it was soon 2-0 when Simon Clist fired in after Ian Sharps turned Mark Beesley's cross against a post.

Stuart Fleetwood then raced clear to bag his 23rd goal in 23 starts this season to wrap it up for the visitors.

Interview: Forest Green manager Jim Harvey

Rotherham: Warrington, Tonge, Sharps, Coughlan, Brogan (Todd 76), Danny Harrison, Hudson, Hurst, O'Grady (Peter Holmes 75), Yates (Newsham 59), Taylor.
Subs Not Used: Annerson, Mills.

Forest Green: Robinson, Lawless, Tonkin (Hardiker 86), Jones, Giles, Pitman (Smith 58), Clist, Preece, Stonehouse, Beesley (Rigoglioso 80), Fleetwood.
Subs Not Used: Afful, Bertram.

Goals: Giles 28, Clist 54, Fleetwood 87.

Att: 2,754

Ref: Scott Mathieson (Cheshire).