diff --git a/cli/server/server.go b/cli/server/server.go
index c7e922eb8..b25b4133d 100644
--- a/cli/server/server.go
+++ b/cli/server/server.go
@@ -78,7 +78,10 @@ func (c *command) run(*kingpin.ParseContext) error {
 
 	g.Go(func() error {
 		// initialize metric collector
-		system.services.MetricCollector.Register(gCtx)
+		if system.services.MetricCollector != nil {
+			system.services.MetricCollector.Register(gCtx)
+		}
+
 		return system.services.JobScheduler.Run(gCtx)
 	})