diff --git a/cmd/cosign/cli/options/signblob.go b/cmd/cosign/cli/options/signblob.go
index 5263e7806df..e3cdcbb4275 100644
--- a/cmd/cosign/cli/options/signblob.go
+++ b/cmd/cosign/cli/options/signblob.go
@@ -28,7 +28,7 @@ type SignBlobOptions struct {
 	Base64Output      bool
 	Output            string // deprecated: TODO remove when the output flag is fully deprecated
 	OutputSignature   string // TODO: this should be the root output file arg.
-	OutputCertificate string // TODO: this should be the root output file arg.
+	OutputCertificate string
 	SecurityKey       SecurityKeyOptions
 	Fulcio            FulcioOptions
 	Rekor             RekorOptions
diff --git a/cmd/cosign/cli/sign.go b/cmd/cosign/cli/sign.go
index 01cb4033bd3..0f6ab8ef7c9 100644
--- a/cmd/cosign/cli/sign.go
+++ b/cmd/cosign/cli/sign.go
@@ -20,7 +20,6 @@ import (
 
 	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
-	"github.com/spf13/viper"
 
 	"github.com/sigstore/cosign/cmd/cosign/cli/generate"
 	"github.com/sigstore/cosign/cmd/cosign/cli/options"
@@ -29,7 +28,6 @@ import (
 
 func Sign() *cobra.Command {
 	o := &options.SignOptions{}
-	viper.RegisterAlias("output", "output-signature")
 
 	cmd := &cobra.Command{
 		Use:   "sign",
diff --git a/cmd/cosign/cli/signblob.go b/cmd/cosign/cli/signblob.go
index 93c9a162486..ba98587693b 100644
--- a/cmd/cosign/cli/signblob.go
+++ b/cmd/cosign/cli/signblob.go
@@ -24,10 +24,12 @@ import (
 	"github.com/sigstore/cosign/cmd/cosign/cli/options"
 	"github.com/sigstore/cosign/cmd/cosign/cli/sign"
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 )
 
 func SignBlob() *cobra.Command {
 	o := &options.SignBlobOptions{}
+	viper.RegisterAlias("output", "output-signature")
 
 	cmd := &cobra.Command{
 		Use:   "sign-blob",