Claimant appeals from an order of the Workers’ Compensation Board that reversed the referee’s finding that her occupational disease claim for a left knee condition was compensable. On de novo review, we agree with the referee that claimant has sustained her burden of proof. ORS 656.802(l)(a); Weller v. Union Carbide, 288 Or 27,602 P2d 259 (1980).

Reversed and remanded with instructions to reinstate referee’s order.