1 files changed, 1 insertions, 0 deletions

diff --git a/lisp/language/vietnamese.el b/lisp/language/vietnamese.el
index 7c10a10d35a..9849fd0c538 100644
--- a/lisp/language/vietnamese.el
+++ b/lisp/language/vietnamese.el
@@ -266,6 +266,7 @@
    (valid-codes (0 . 255))))
 
 (define-coding-system-alias 'tcvn 'vietnamese-tcvn)
+(define-coding-system-alias 'tcvn-5712 'vietnamese-tcvn)
 
 ;; (make-coding-system
 ;;  'vietnamese-vps 4 ?p