diff --git a/scripts/ssh/ssh-exec.php b/scripts/ssh/ssh-exec.php
--- a/scripts/ssh/ssh-exec.php
+++ b/scripts/ssh/ssh-exec.php
@@ -230,7 +230,7 @@
 
   $parsed_args = new PhutilArgumentParser($parseable_argv);
 
-  if (empty($workflow_names[$command])) {
+  if (empty($workflows[$command])) {
     throw new Exception(pht('Invalid command.'));
   }