diff --git a/tsconsensus/tsconsensus_test.go b/tsconsensus/tsconsensus_test.go
index 095f7e768..3bb13abc7 100644
--- a/tsconsensus/tsconsensus_test.go
+++ b/tsconsensus/tsconsensus_test.go
@@ -40,7 +40,7 @@ import (
 )
 
 type fsm struct {
-	mu          sync.Mutex // protects events and count
+	mu          sync.Mutex
 	applyEvents []string
 }