diff --git a/.env.docker b/.env.docker
index fb15956b4..a38c6b61c 100644
--- a/.env.docker
+++ b/.env.docker
@@ -47,7 +47,7 @@ ADMIN_DOMAIN="${APP_DOMAIN}"
 #
 # @default "production"
 # @see https://docs.pixelfed.org/technical-documentation/config/#app_env
-# @dottie/validate required,oneof='production,dev,staging'
+# @dottie/validate required,oneof=production dev staging
 #APP_ENV="production"
 
 # When your application is in debug mode, detailed error messages with stack traces will