1 files changed, 1 insertions, 0 deletions
diff --git a/lib.h b/lib.h
index af7e6f8e..a17a6d6d 100644
--- a/lib.h
+++ b/lib.h
@@ -1093,6 +1093,7 @@ val upcase_str(val str);
 val downcase_str(val str);
 val string_extend(val str, val tail, val finish);
 val string_finish(val str);
+val us_string_extend_STR_CHR(val str, val ch, val finish, val self);
 val string_set_code(val str, val code);
 val string_get_code(val str);
 val stringp(val str);