diff --git a/man/dnsmanagerctl.1 b/man/dnsmanagerctl.1
index c6370cf..811c6b7 100644
--- a/man/dnsmanagerctl.1
+++ b/man/dnsmanagerctl.1
@@ -95,6 +95,12 @@ nb-domains login domain1 domain2 domain3...
 See
 .Pa migration.mk
 for more information.
+
+.It Li delete-user-data
+Purge all the data related to an user.
+.br
+Usage:
+.Ar admin delete-user-data uid [uid...]
 .El
 
 For