1 files changed, 2 insertions, 2 deletions
diff --git a/utf8.c b/utf8.c
index 37d4bf73..ecd3c01b 100644
--- a/utf8.c
+++ b/utf8.c
@@ -202,9 +202,9 @@ size_t utf8_to(char *dst, const wchar_t *wsrc)
 wchar_t *utf8_dup_from(const char *str)
 {
   size_t len = strlen(str);
-  size_t nchar = utf8_from_buf(0, coerce(unsigned char *, str), len);
+  size_t nchar = utf8_from_buf(0, coerce(const unsigned char *, str), len);
   wchar_t *wstr = chk_wmalloc(nchar);
-  utf8_from_buf(wstr, coerce(unsigned char *, str), len);
+  utf8_from_buf(wstr, coerce(const unsigned char *, str), len);
   return wstr;
 }