"Oh they are missing an 'r.'
"Hilarious! Common. Very very common," she said.
"I hope they keep it that way."
Ardern said the day that Norman Kirk opened the rooms in 1970, a seagull "pooped on him".
"So there's got to be something that happens to me.
"A misspelling is probably better," Ms Ardern said.
Curran, the Broadcasting Minister, described the mistake as "a boo-boo".
"I take full responsibility for the lack of proof reading."
She said the error would be fixed as soon as possible, and was "just one of those things".
"So there you go.
"I need to brush up on my proof-reading skills."
The plaque would appear on the outside of the building once it was fixed.
— additional reporting NZME