diff --git a/help.txt b/help.txt
index f9cfd520..c02ab7a9 100644
--- a/help.txt
+++ b/help.txt
@@ -1,6 +1,7 @@
 MANAGE PLUGINS
   asdf plugin-add <name> [<git-url>]   Add a plugin
   asdf plugin-list                     List installed plugins
+  asdf plugin-list-all                 List plugins registered on asdf-plugins repository
   asdf plugin-remove <name>            Remove plugin and package versions
   asdf plugin-update <name>            Update plugin
   asdf plugin-update --all             Update all plugins