1 files changed, 5 insertions, 0 deletions

diff --git a/lisp/language/lao.el b/lisp/language/lao.el
index b8add00ec3e..c969871065e 100644
--- a/lisp/language/lao.el
+++ b/lisp/language/lao.el
@@ -47,4 +47,9 @@
 (aset use-default-ascent ?(1B(B t)
 (aset ignore-relative-composition ?(1\(B t)
 
+;; Register a function to compose Lao characters.
+(aset composition-function-table (make-char 'lao)
+      '(("\\c0\\c9?\\(\\(\\c2\\|\\c3\\)\\c4?\\|\\c4\\)?"
+         . lao-composition-function)))
+
 ;;; lao.el ends here