diff --git a/cmd/alertmanager/main.go b/cmd/alertmanager/main.go
index 55de352910..24c97816e3 100644
--- a/cmd/alertmanager/main.go
+++ b/cmd/alertmanager/main.go
@@ -150,7 +150,7 @@ func run() int {
 		maxSilences         = kingpin.Flag("silences.max-silences", "Maximum number of silences, including expired silences. If negative or zero, no limit is set.").Default("0").Int()
 		maxSilenceSizeBytes = kingpin.Flag("silences.max-silence-size-bytes", "Maximum silence size in bytes. If negative or zero, no limit is set.").Default("0").Int()
 		alertGCInterval     = kingpin.Flag("alerts.gc-interval", "Interval between alert GC.").Default("30m").Duration()
-		silenceLogging      = kingpin.Flag("silences.logging", "Enable logging silences. If it is enabled, the status change of silence will be logged").Bool()
+		silenceLogging      = kingpin.Flag("log.silences", "Enable logging silences. If it is enabled, the status change of silence will be logged").Bool()
 
 		webConfig      = webflag.AddFlags(kingpin.CommandLine, ":9093")
 		externalURL    = kingpin.Flag("web.external-url", "The URL under which Alertmanager is externally reachable (for example, if Alertmanager is served via a reverse proxy). Used for generating relative and absolute links back to Alertmanager itself. If the URL has a path portion, it will be used to prefix all HTTP endpoints served by Alertmanager. If omitted, relevant URL components will be derived automatically.").String()