1 files changed, 2 insertions, 1 deletions

diff --git a/src/casefiddle.c b/src/casefiddle.c
index 2b14cd17d34..c8ebd0e52bc 100644
--- a/src/casefiddle.c
+++ b/src/casefiddle.c
@@ -127,7 +127,8 @@ casify_object (flag, obj)
                   if ((int) flag >= (int) CASE_CAPITALIZE)
                     inword = SYNTAX (c) == Sword;
                 }
-              obj = make_string (buf, j_byte);
+              obj = make_multibyte_string (buf, XSTRING (obj)->size,
+                                           j_byte);
             }
           return obj;
         }