diff --git a/doc/source/shared/abbrevs.txt b/doc/source/shared/abbrevs.txt
index e4b9afebd..68307a082 100755
--- a/doc/source/shared/abbrevs.txt
+++ b/doc/source/shared/abbrevs.txt
@@ -58,6 +58,7 @@
 .. |DRBD| replace:: :abbr:`DRBD (Distributed Replicated Block Device)`
 .. |DSA| replace:: :abbr:`DSA (Data Streaming Accelerator)`
 .. |DSCP| replace:: :abbr:`DSCP (Differentiated Services Code Point)`
+.. |DTLS| replace:: :abbr:`DTLS (Datagram Transport Layer Security)`
 .. |DVR| replace:: :abbr:`DVR (Distributed Virtual Router)`
 .. |DWQ| replace:: abbr:`DWQ (Dedicated Work Queue)`
 .. |EMS| replace:: :abbr:`EMS (Element Management System)`