diff --git a/doc/source/admin/troubleshooting/orphaned-allocations.rst b/doc/source/admin/troubleshooting/orphaned-allocations.rst
index c61684497b..8ea008b234 100644
--- a/doc/source/admin/troubleshooting/orphaned-allocations.rst
+++ b/doc/source/admin/troubleshooting/orphaned-allocations.rst
@@ -233,4 +233,4 @@ an existing instance or migration UUID:
 
 .. code-block:: console
 
-  $ nova-manage placement audit --verbose --delete --resource-provider <uuid>
+  $ nova-manage placement audit --verbose --delete --resource_provider <uuid>