diff --git a/src/getchar.c b/src/getchar.c
index 81cb837..56de094 100644
--- a/src/getchar.c
+++ b/src/getchar.c
@@ -129,6 +129,7 @@
 static void	map_free(mapblock_T **);
 static void	validate_maphash(void);
 static void	showmap(mapblock_T *mp, int local);
+static int	inchar(char_u *buf, int maxlen, long wait_time, int tb_change_cnt);
 #ifdef FEAT_EVAL
 static char_u	*eval_map_expr(char_u *str, int c);
 #endif
@@ -2941,7 +2942,7 @@
  *  Return the number of obtained characters.
  *  Return -1 when end of input script reached.
  */
-    int
+    static int
 inchar(
     char_u	*buf,
     int		maxlen,