1 files changed, 1 insertions, 1 deletions
diff --git a/utf8.c b/utf8.c
index b0e3c3cb..9458d8b2 100644
--- a/utf8.c
+++ b/utf8.c
@@ -297,7 +297,7 @@ utf8_split(u_int uvalue, u_char *data)
 }
 
 int
-utf8_width(u_char *udata)
+utf8_width(const u_char *udata)
 {
 	struct utf8_width_entry	*item;
 	u_int			 uvalue;