diff --git a/chapter/ntp.tex b/chapter/ntp.tex
index f94e877..e9e1b7f 100644
--- a/chapter/ntp.tex
+++ b/chapter/ntp.tex
@@ -1,4 +1,6 @@
-\chapter{Network Time Protocol}
+\chapter{NTP}
+
+\gls{ntp} is the source of all evil and \gls{sla}. A network wide source of time configuration for all network nodes, servers, clients etc. is necessary.
 
 \section{The old NTP from \tsq{85}}