LOS ANGELES-- A surfer has filed a product liability lawsuit against a California surfboard manufacturer because the too-sharp fin sliced his leg.

The Los Angeles Superior Court lawsuit filed Wednesday by recreational surfer Tom Gregg contends the surfboard, fins and their component parts are unsafe for their intended use.

The Los Angeles Times says the Channel Islands surfboard fin severed muscles in his leg when he wiped out off the coast of France in 2009.

Channel Islands Surfboards general manager Scott Anderson says it's the first product liability suit he's heard of in his 20 years at the Carpinteria-based firm.

Channel Islands, acquired five years ago by snowboard maker Burton Corp., sells boards at more than 400 stores worldwide.