diff --git a/Dockerfile b/Dockerfile
index 2286e53..abde698 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM ghcr.io/linuxserver/unrar:latest as unrar
+FROM ghcr.io/linuxserver/unrar:latest AS unrar
 
 FROM ghcr.io/linuxserver/baseimage-alpine:3.20
 
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 0965cdd..9c05605 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM ghcr.io/linuxserver/unrar:arm64v8-latest as unrar
+FROM ghcr.io/linuxserver/unrar:arm64v8-latest AS unrar
 
 FROM ghcr.io/linuxserver/baseimage-alpine:arm64v8-3.20
 
diff --git a/readme-vars.yml b/readme-vars.yml
index 449725e..ab6190a 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -19,6 +19,9 @@ param_volumes:
 param_usage_include_ports: true
 param_ports:
   - {external_port: "6767", internal_port: "6767", port_desc: "Allows HTTP access to the internal webserver."}
+
+readonly_supported: true
+
 # application setup block
 app_setup_block_enabled: true
 app_setup_block: |