The US company designing the cover for Under the Make-up. the new single, used a stock image of a floating landmass with rocks disintegrating beneath it, apparently unaware that Chissano's cover designers had settled on the exact same image for his song I'm a Renegade, out last year.
Only days after releasing the single on July 3, the band has had to start work on a new cover for the single.
“It was the fans who pointed this out to us the same day cover was published,” Harald Wiik, the band's manager told VG newspaper. “Neither I nor the band knew about this before we were told of the similarity.”
He said he didn't blame the design company.
“I would just call it a bit unlucky,” he said. “It's a slip-up, but not an unforgivable slip-up. We're not blaming anyone for this. We're just happy it's being corrected.”
Wik said that as the single was only being released online, there were no records or cds to be called back.
On Wednesday night, the old cover was still on show on Spotify, Apple Music and Wimp.
A-ha reformed in March, committing to a two-year programme which will see the band release one album and make an international tour.
The last time they reunited in 2010, they made an estimated 500m kroner ($60m) in less than a year with a Greatest Hits album and world tour.