1 files changed, 2 insertions, 1 deletions

diff --git a/src/casefiddle.c b/src/casefiddle.c
index d3ddf6cb80e..4f1f72f6e9e 100644
--- a/src/casefiddle.c
+++ b/src/casefiddle.c
@@ -124,7 +124,8 @@ casify_object (flag, obj)
                   if ((int) flag >= (int) CASE_CAPITALIZE)
                     inword = SYNTAX (c) == Sword;
                 }
-              obj = make_multibyte_string (buf, j, j_byte);
+              obj = make_specified_string (buf, j, j_byte,
+                                           STRING_MULTIBYTE (obj));
             }
           return obj;
         }