A bid to prevent parking in a Brisbane street has crossed the line, according to police and the Brisbane City Council.

The wonky, DIY-style yellow line was added to an existing yellow marker in Morningside's Avon Street and was noticed by police last week.

Police and the Brisbane City Council are not impressed with this DIY-style yellow line. Credit:Brisbane City Council

Sergeant Michelle Mullen said a ticket was about to be issued to a driver who had parked on the line when the officer noticed something was amiss.

The fake line breached the Queensland Transport Operations Act 1995, which prohibits "Unlawful installation of official traffic signs".