Buzzcocks guitarist Steve Diggle is concerned bands including Green Day fail to see the true point of punk - which is rejecting the past and creating something new.
The Ever Fallen In Love? Rocker is flattered the American rockers cite him and his contemporaries The Clash and the Sex Pistols as an influence.
But he'd prefer it if they acted like real punks and stopped trying to "ape" their heroes.
He says: "They're alright. They're nice guys, and I think it's a compliment they are inspired by us.
"But they are a watered down version of the original.
"The Buzzcocks, the Pistols and The Clash, we all developed something of our own instead of apeing people from before."