diff --git a/pkg/controller/node/ipam/sync/sync.go b/pkg/controller/node/ipam/sync/sync.go
index 67fc2c4c325..4995f425543 100644
--- a/pkg/controller/node/ipam/sync/sync.go
+++ b/pkg/controller/node/ipam/sync/sync.go
@@ -173,7 +173,7 @@ func (sync *NodeSync) Delete(node *v1.Node) {
 
 // syncOp is the interface for generic sync operation.
 type syncOp interface {
-	// Run the requested sync operation.
+	// run the requested sync operation.
 	run(sync *NodeSync) error
 }