Hughes (centre) celebrates after scoring Coventry's opening goal

From a free-kick Michael Doyle rolled the ball to Hughes who scored with a left-foot shot which went through the defensive wall and into the corner.

Jay Simpson equalised when he created space in the area to fire a rising shot past the keeper from 12 yards.

Dele Adebola's shot hit a post and broke for Mifsud who side-footed into an unguarded net from eight yards out.

Mifsud wasted a glorious chance to double Coventry's lead in the 21st minute.

The Sky Blues' top scorer was put clear by Adebola's reverse pass but, under pressure from a defender tracking back, Mifsud scuffed his effort straight at Evans.

606: DEBATE How far can Coventry go?

Soon after Simpson spurned a similar chance to equalise when he shot straight at Dimi Konstantopoulos, before Lewis Grabban saw his follow-up deflected wide.

Millwall should have forced a replay in the closing stages when Gary Alexander missed a glorious chance to equalise.

With time and space just 10 yards out, Alexander somehow dragged his shot wide.

But Coventry held on for victory and end a period of poor results which has seen them lose five of their last six Championship matches.

Coventry: Konstantopoulos, Osbourne, Ward, Borrowdale, Davis, Tabb, Stephen Hughes, Doyle, Gray, Adebola (Simpson 72), Mifsud (Best 89).
Subs Not Used: Cairo, Thornton, Francis.

Booked: Gray.

Goals: Stephen Hughes 16, Mifsud 52.

Millwall: Evans, Senda, Robinson, Frampton, Barron, Simpson, Dunne, Fuseini (Harris 78), Forbes (Brammer 66), Alexander, Grabban.
Subs Not Used: Edwards, Bakayogo, Shaw.

Booked: Senda, Robinson.

Goals: Simpson 42.

Att: 17,268

Ref: Nigel Miller (Durham).

BBC Sport Player Rater man of the match: Coventry's Michael Mifsud 7.67 (on 90 minutes).