The minor error was somehow spotted by an office worker in a nearby building, who posted a photo of the mistake on Reddit.

The signage was fixed a week later after Redditor /u/Micktallica’s post went viral on social media, but representatives of the company insist they were already aware of the error.

A spokesperson for Zurich Life & Investments said the signage “was (still is) under construction so they were looking at a work in progress”, Gizmodo reports.

She added: “We’re delighted we can bring some light relief to North Sydney office workers though.”