diff --git a/cmd/prometheus/main.go b/cmd/prometheus/main.go
index 596e962fd2..7aab8a93ef 100644
--- a/cmd/prometheus/main.go
+++ b/cmd/prometheus/main.go
@@ -180,9 +180,6 @@ func (c *flagConfig) setFeatureListOptions(logger log.Logger) error {
 			case "extra-scrape-metrics":
 				c.scrape.ExtraMetrics = true
 				level.Info(logger).Log("msg", "Experimental additional scrape metrics enabled")
-			case "metadata-storage":
-				c.scrape.EnableMetadataStorage = true
-				level.Info(logger).Log("msg", "Experimental in-memory metadata storage enabled")
 			case "new-service-discovery-manager":
 				c.enableNewSDManager = true
 				level.Info(logger).Log("msg", "Experimental service discovery manager")