diff --git a/cmd/skopeo/signing.go b/cmd/skopeo/signing.go
index 914b167e..7568de77 100644
--- a/cmd/skopeo/signing.go
+++ b/cmd/skopeo/signing.go
@@ -18,7 +18,7 @@ type standaloneSignOptions struct {
 func standaloneSignCmd() *cobra.Command {
 	opts := standaloneSignOptions{}
 	cmd := &cobra.Command{
-		Use:   "standalone-sign [command options] MANIFEST DOCKER-REFERENCE KEY-FINGERPRINT",
+		Use:   "standalone-sign [command options] MANIFEST DOCKER-REFERENCE KEY-FINGERPRINT --output|-o SIGNATURE",
 		Short: "Create a signature using local files",
 		RunE:  commandAction(opts.run),
 	}
diff --git a/docs/skopeo-standalone-sign.1.md b/docs/skopeo-standalone-sign.1.md
index b123d04b..39543b13 100644
--- a/docs/skopeo-standalone-sign.1.md
+++ b/docs/skopeo-standalone-sign.1.md
@@ -4,7 +4,7 @@
 skopeo\-standalone-sign - Debugging tool - Publish and sign an image in one step.
 
 ## SYNOPSIS
-**skopeo standalone-sign** [*options*] _manifest_ _docker-reference_ _key-fingerprint_
+**skopeo standalone-sign** [*options*] _manifest_ _docker-reference_ _key-fingerprint_ **--output**|**-o** _signature_
 
 ## DESCRIPTION
 This is primarily a debugging tool, or useful for special cases,