1 files changed, 1 insertions, 0 deletions
diff --git a/utf8.h b/utf8.h
index 98cce1b038..2f1b14ff49 100644
--- a/utf8.h
+++ b/utf8.h
@@ -5,6 +5,7 @@ typedef unsigned int ucs_char_t;  /* assuming 32bit int */
 
 ucs_char_t pick_one_utf8_char(const char **start, size_t *remainder_p);
 int utf8_width(const char **start, size_t *remainder_p);
+int utf8_strwidth(const char *string);
 int is_utf8(const char *text);
 int is_encoding_utf8(const char *name);