diff --git a/HowtoSystemd.md b/HowtoSystemd.md
index b9e01397..64cf93e5 100644
--- a/HowtoSystemd.md
+++ b/HowtoSystemd.md
@@ -1,5 +1,5 @@
 ---
-categories: system
+categories: system sysadmin
 title: Howto systemd
 ...