diff --git a/cmd/step-pkcs11-init/main.go b/cmd/step-pkcs11-init/main.go
index 0dd431ad..7768a944 100644
--- a/cmd/step-pkcs11-init/main.go
+++ b/cmd/step-pkcs11-init/main.go
@@ -94,6 +94,7 @@ func main() {
 
 	var c Config
 	flag.StringVar(&c.KMS, "kms", kmsuri, "PKCS #11 URI with the module-path and token to connect to the module.")
+	flag.StringVar(&c.Pin, "pin", "", "PKCS #11 PIN")
 	flag.StringVar(&c.RootObject, "root-cert", "pkcs11:id=7330;object=root-cert", "PKCS #11 URI with object id and label to store the root certificate.")
 	flag.StringVar(&c.RootKeyObject, "root-key", "pkcs11:id=7330;object=root-key", "PKCS #11 URI with object id and label to store the root key.")
 	flag.StringVar(&c.CrtObject, "crt-cert", "pkcs11:id=7331;object=intermediate-cert", "PKCS #11 URI with object id and label to store the intermediate certificate.")