diff --git a/maxctrl/lib/core.js b/maxctrl/lib/core.js
index a386c9642..85391111c 100644
--- a/maxctrl/lib/core.js
+++ b/maxctrl/lib/core.js
@@ -104,7 +104,7 @@ program
     .demandCommand(1, 'At least one command is required')
     .command('*', 'the default command', {}, function(argv) {
         maxctrl(argv, function() {
-            return error('Unknown command. See output of `help` for a list of commands.')
+            return error('Unknown command ' + JSON.stringify(argv._) + '. See output of `help` for a list of commands.')
         })
     })