Diageo has removed the "Special" from its Crown Royal Special Reserve brand, but claims it has not altered the Canadian whisky's composition.

The brand has been re-launched as Crown Royal Reserve, along with a new packaging design, Diageo announced today (2 October).

A specific reason for the name change remained unclear.

"While the name and packaging have changed, Crown Royal Reserve is the same rich combination of fine whiskies as the previously named Special Reserve, each individually selected by Master Blender Andrew MacKay," the drinks giant said.

Crown Royal Reserve, one of the biggest selling premium whiskies in the US, is made with more than 50 blended and individually aged whiskies in French Cognac barrels, Diageo said.

The re-launched brand has a suggested retail price of US$45.