1 files changed, 1 insertions, 1 deletions

diff --git a/src/coding.c b/src/coding.c
index 2d5618649d1..26d47da9317 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -731,7 +731,7 @@ detect_coding_emacs_mule (src, src_end, multibytep)
           c = -1;                                               \
         else                                                    \
           {                                                     \
-            c -= 0xA0;                                          \
+            c -= 0x80;                                          \
             *p++ = c;                                           \
           }                                                     \
       }                                                         \