diff --git a/uncloud/hack/vm.py b/uncloud/hack/vm.py
index f9cd31a..ac403d8 100755
--- a/uncloud/hack/vm.py
+++ b/uncloud/hack/vm.py
@@ -31,7 +31,7 @@
 #
 #   Stop a VM:
 #   `uncloud hack --hackprefix /tmp/hackcloud --destroy-vm --uuid my-vm-uuid`
-    ``
+#    ``
 
 import subprocess
 import uuid