1 files changed, 2 insertions, 1 deletions

diff --git a/src/coding.c b/src/coding.c
index f2bbc929382..c87f117fe1b 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -2125,9 +2125,10 @@ encode_coding_emacs_mule (coding)
           if (leading_codes[1])
             EMIT_ONE_BYTE (leading_codes[1]);
           if (dimension == 1)
-            EMIT_ONE_BYTE (code);
+            EMIT_ONE_BYTE (code | 0x80);
           else
             {
+              code |= 0x8080;
               EMIT_ONE_BYTE (code >> 8);
               EMIT_ONE_BYTE (code & 0xFF);
             }