diff --git a/pkg/neg/controller.go b/pkg/neg/controller.go
index 33b80ab8a9..facfd395be 100644
--- a/pkg/neg/controller.go
+++ b/pkg/neg/controller.go
@@ -362,6 +362,7 @@ func (c *Controller) Run(stopCh <-chan struct{}) {
 		wait.Until(c.gc, c.gcPeriod, stopCh)
 	}()
 	go c.reflector.Run(stopCh)
+	go c.syncerMetrics.Run(stopCh)
 	<-stopCh
 }