diff --git a/doc/guide/hammer.xml b/doc/guide/hammer.xml
index f9dee5335b..92ed1d83bf 100644
--- a/doc/guide/hammer.xml
+++ b/doc/guide/hammer.xml
@@ -39,7 +39,7 @@
or in VirtualBox. To list of supported systems, use
supported-systems command:
-$./hammer.py list-systems
+$./hammer.py supported-systems
fedora:
- 27: lxc, virtualbox
- 28: lxc, virtualbox
@@ -60,7 +60,8 @@ freebsd:
- 12.0: virtualbox
- It is also possible to run build locally, in current system (still if supported).
+ It is also possible to run build locally, in current system (if
+ the OS is supported).