diff --git a/cmd/prometheus/main.go b/cmd/prometheus/main.go
index fc967b474..363ffe44b 100644
--- a/cmd/prometheus/main.go
+++ b/cmd/prometheus/main.go
@@ -202,7 +202,7 @@ func Main() int {
 	prometheus.MustRegister(configSuccess)
 	prometheus.MustRegister(configSuccessTime)
 
-	// The notifieris a dependency of the rule manager. It has to be
+	// The notifier is a dependency of the rule manager. It has to be
 	// started before and torn down afterwards.
 	go notifier.Run()
 	defer notifier.Stop()