diff --git a/pkg/mining/circuit_breaker.go b/pkg/mining/circuit_breaker.go
index 4716105..a0f90af 100644
--- a/pkg/mining/circuit_breaker.go
+++ b/pkg/mining/circuit_breaker.go
@@ -64,7 +64,6 @@ type CircuitBreaker struct {
 	cacheDuration  time.Duration
 }
 
-// ErrCircuitOpen is returned when the circuit is open
 // if err == ErrCircuitOpen { /* fallback to cached result */ }
 var ErrCircuitOpen = NewMiningError(ErrCodeServiceUnavailable, "circuit breaker is open")