diff --git a/HowtoOpenSSH.md b/HowtoOpenSSH.md
index f326fe74..d32eee0f 100644
--- a/HowtoOpenSSH.md
+++ b/HowtoOpenSSH.md
@@ -1,5 +1,5 @@
 ---
-categories: OpenBSD sysadmin
+categories: openbsd sysadmin
 title: Howto OpenSSH
 ...