1 files changed, 1 insertions, 1 deletions
diff --git a/tmux.h b/tmux.h
index de19159d..0d2d773d 100644
--- a/tmux.h
+++ b/tmux.h
@@ -2181,7 +2181,7 @@ void		 session_group_synchronize1(struct session *, struct session *);
 void		 session_renumber_windows(struct session *);
 
 /* utf8.c */
-void		 utf8_build(void);
+u_int		 utf8_width(u_int);
 void		 utf8_set(struct utf8_data *, u_char);
 int		 utf8_open(struct utf8_data *, u_char);
 int		 utf8_append(struct utf8_data *, u_char);