diff --git a/pkg/util/timeutil/timer.go b/pkg/util/timeutil/timer.go
index 57736bfb2b33..41934174f9b3 100644
--- a/pkg/util/timeutil/timer.go
+++ b/pkg/util/timeutil/timer.go
@@ -39,7 +39,7 @@ var timeTimerPool sync.Pool
 //  defer timer.Stop()
 //  for {
 //      timer.Reset(wait)
-//      switch {
+//      select {
 //      case <-timer.C:
 //          timer.Read = true
 //          ...