When some of the chocolate’s production moves from Switzerland to Slovakia, Toblerone will remove the Matterhorn mountain peak from its packaging.
The pyramid-shaped bar, which resembles an Alpine peak, will have its label updated and will include its creator’s signature, according to its creator.
The image of the 4,478m (14,692 ft) mountain will be replaced by a more generic summit, according to Mondelez.
Since 2017, strict rules regarding “Swissness” have been in effect.
They state that national symbols may not be used to promote milk-based products that are not manufactured entirely in Switzerland. The threshold for other raw foods is at least 80%.
In a statement to the BBC, Mondelez said it was moving some production outside of the country to “respond to increased demand worldwide and to grow our Toblerone brand for the future”.
Its new packaging will feature a “distinctive new Toblerone typeface and logo that draw further inspiration from the Toblerone archives, as well as the inclusion of our founder, Tobler’s, signature,” according to the company.
Toblerone, a mountain-shaped chocolate made from Swiss milk with honey and almond nougat, was first sold in Bern, Switzerland’s capital city, in 1908.
According to the Toblerone website, the Matterhorn’s jagged silhouette first appeared on its packaging in 1970, with the Bernese bear and eagle appearing before that.
Bern was a “important part of our history and will continue to be so in the future,” according to Mondelez.
Toblerone sparked controversy in 2016 when it changed the design of the chocolate bar to space out the distinctive triangular chunks in order to cut costs.
After much backlash, the company reverted to its original form two years later.