Six years after a heavily criticized modification to the shape of its chocolate bars, Toblerone is set to make yet another change – this time, it's looking to drop the iconic image of the Matterhorn mountain from its chocolate packaging.

Mondelez International Inc., the US parent company that owns the chocolate brand is moving some of Toblerone's production to Slovakia which means the chocolate may not meet Switzerland's legal definition of "Swissness".

Swiss law dictates that any food item marketing itself as being "made in Switzerland" must source at least 80% of its raw ingredients from the country. 

The law also covers the use of Swiss symbols, including those that indicate geographical territory.