During a scene in the Rovers Return, Fiz Brown (played by Jennie McAlpine) was handed a pint by a man who looked very similar to Kirk.
Viewers were certain that the actress had taken the drink from him and said, "Thanks Kirk," and were confused by the character's replacement.
However, it was revealed that Fiz actually said, "Thanks Dirk," as she acknowledged soap extra Adam Blease.
Addressing fans fears that Kirk had been replaced on the ITV soap, Jennie took to social media to clarify the mix-up.
It was revealed that Fiz Brown was actually handed a drink by Dirk
Fiz Brown was actually handed a pint by soap extra Adam Blease
Jennie McAlpine took to Twitter to set the record straight about the mix-up
Think you need to clean your ears out pet. That's our Dirk
Sally Ann Matthews
She explained: "Our Dirk. I would never get the two mixed up. And he's Kirky to me, always."
Sally Ann Matthews, who plays Jenny Bradley, also took to Twitter to set the record straight, informing viewers: "Think you need to clean your ears out pet. That's our DIRK x."
Adam, who has been a long-running extra on the Weatherfield-set soap, found the whole incident hilarious and joked that he would be asking for his own dressing room.
He also retweeted the eagle-eyed fans who recognised the difference between Dirk and Kirk, including a fan who noted: "@AdamBlease #TheresOnlyOneKirk and #TheresOnlyOneDirk."
Andrew Whyment plays Kirk Sutherland in Coronation Street
8 of the biggest Coronation Street blunders
Wed, November 30, 2016
Coronation Street errors: Eagle-eyed viewers spotted 8 baffling blunders and mistakes on the popular soap.
1 of 8
Coronation Street fans were left in hysterics when Debbie Rush, who plays Anna Windass, was seen to use a pair of crutches the wrong way around
Brooke Vincent stars as Sophie Webster on the ITV soap
The 24-year-old argued: "Moving forward as a generation we want it to be normal, we've said it and that's that.
"I think there's more to people than their sexuality so I would much prefer to do a storyline to do with my job, or my family, that's not necessarily, 'Oh, you're a lesbian and this is what lesbians face,' because its not necessarily true."
Coronation Street continues on ITV tonight at 7.30pm.