2 files changed, 4 insertions, 2 deletions

diff --git a/lisp/language/lao.el b/lisp/language/lao.el
index e7aba923f47..e9bde98663c 100644
--- a/lisp/language/lao.el
+++ b/lisp/language/lao.el
@@ -28,7 +28,8 @@
  'lao 2 ?L
  "8-bit encoding for ASCII (MSB=0) and LAO (MSB=1)"
  '((ascii t) (lao t) nil nil
-   nil ascii-eol))
+   nil ascii-eol)
+ '(ascii lao))
 
 (set-language-info-alist
  "Lao" '((setup-function . setup-lao-environment)
diff --git a/lisp/language/thai.el b/lisp/language/thai.el
index 0e3cfb91080..a96c7cceef7 100644
--- a/lisp/language/thai.el
+++ b/lisp/language/thai.el
@@ -32,7 +32,8 @@
  'thai-tis620 2 ?T
  "8-bit encoding for ASCII (MSB=0) and Thai TIS620 (MSB=1)"
  '((ascii t) (thai-tis620 t) nil nil
-   nil ascii-eol))
+   nil ascii-eol)
+ '(ascii thai-tis620))
 (coding-system-put 'thai-tis620 'post-read-conversion
                    'thai-post-read-conversion)
 (coding-system-put 'thai-tis620 'pre-write-conversion