diff --git a/action.yml b/action.yml
index da1a6a7..75c7fb5 100644
--- a/action.yml
+++ b/action.yml
@@ -14,7 +14,7 @@ inputs:
     required: true
     default: x86_64
   enrollment_password:
-    description: Used for supporting secure boot (requires SECURE_BOOT_KEY_URL to be defined)
+    description: Used for supporting secure boot (requires secure_boot_key_url to be defined)
     required: false
     default: "container-installer"
   extra_boot_params: