diff --git a/pkg/plugin/plugin.go b/pkg/plugin/plugin.go
index 20949aa89159d..cf5401bbb8263 100644
--- a/pkg/plugin/plugin.go
+++ b/pkg/plugin/plugin.go
@@ -289,6 +289,7 @@ func (w *flushWatcher) watchLoop() {
 			"plugin flushWatcher old chan closed, restart loop later",
 			zap.String("plugin", w.manifest.Name),
 			zap.Duration("after", reWatchInterval))
+		time.Sleep(reWatchInterval)
 	}
 }