1 files changed, 1 insertions, 1 deletions

diff --git a/src/character.h b/src/character.h
index c41c5daa906..255afb2a0b1 100644
--- a/src/character.h
+++ b/src/character.h
@@ -187,7 +187,7 @@ extern char unibyte_has_multibyte_table[256];
 
 #define BYTE8_STRING(b, p)                      \
   ((p)[0] = (0xC0 | (((b) >> 6) & 0x01)),       \
-   (p)[1] = (0x80 | ((c) & 0x3F)),              \
+   (p)[1] = (0x80 | ((b) & 0x3F)),              \
    2)