diff --git a/pkg/apis/externaldns/types.go b/pkg/apis/externaldns/types.go
index 12759ab32..1eb8570bf 100644
--- a/pkg/apis/externaldns/types.go
+++ b/pkg/apis/externaldns/types.go
@@ -424,7 +424,7 @@ func (cfg *Config) ParseFlags(args []string) error {
 	app.Flag("crd-source-apiversion", "API version of the CRD for crd source, e.g. `externaldns.k8s.io/v1alpha1`, valid only when using crd source").Default(defaultConfig.CRDSourceAPIVersion).StringVar(&cfg.CRDSourceAPIVersion)
 	app.Flag("crd-source-kind", "Kind of the CRD for the crd source in API group and version specified by crd-source-apiversion").Default(defaultConfig.CRDSourceKind).StringVar(&cfg.CRDSourceKind)
 	app.Flag("service-type-filter", "The service types to take care about (default: all, expected: ClusterIP, NodePort, LoadBalancer or ExternalName)").StringsVar(&cfg.ServiceTypeFilter)
-	app.Flag("managed-record-types", "Comma separated list of record types to manage (default: A, CNAME) (supported records: CNAME, A, NS").Default("A", "CNAME").StringsVar(&cfg.ManagedDNSRecordTypes)
+	app.Flag("managed-record-types", "Record types to manage; specify multiple times to include many; (default: A, CNAME) (supported records: CNAME, A, NS").Default("A", "CNAME").StringsVar(&cfg.ManagedDNSRecordTypes)
 	app.Flag("default-targets", "Set globally default IP address that will apply as a target instead of source addresses. Specify multiple times for multiple targets (optional)").StringsVar(&cfg.DefaultTargets)
 	app.Flag("target-net-filter", "Limit possible targets by a net filter; specify multiple times for multiple possible nets (optional)").StringsVar(&cfg.TargetNetFilter)
 	app.Flag("exclude-target-net", "Exclude target nets (optional)").StringsVar(&cfg.ExcludeTargetNets)