diff --git a/HELP.md b/HELP.md
index 1ff60ed5..5eaf6de0 100644
--- a/HELP.md
+++ b/HELP.md
@@ -335,6 +335,7 @@ Some config options can be overridden with `environment variables` such:
 - `CLOUDCMD_TERMINAL` - enable terminal
 - `CLOUDCMD_TERMINAL_PATH` - set terminal path
 - `CLOUDCMD_CONFIG_DIALOG` - enable config dialog
+- `CLOUDCMD_AUTH` - enable authentication
 
 Menu
 ---------------
diff --git a/bin/cloudcmd.js b/bin/cloudcmd.js
index f8946a15..b61320ee 100755
--- a/bin/cloudcmd.js
+++ b/bin/cloudcmd.js
@@ -46,7 +46,7 @@ const args = require('minimist')(argv.slice(2), {
     ],
     default: {
         server      : true,
-        auth        : config('auth'),
+        auth        : choose(env('auth'), config('auth')),
         port        : config('port'),
         minify      : config('minify'),
         online      : config('online'),