1 files changed, 2 insertions, 2 deletions
diff --git a/lib.h b/lib.h
index 64a08e3d..aab0083d 100644
--- a/lib.h
+++ b/lib.h
@@ -712,8 +712,8 @@ val gev(val first, struct args *rest);
 val lev(val first, struct args *rest);
 val numeqv(val first, struct args *rest);
 val numneqv(struct args *list);
-val sum(val seq);
-val prod(val seq);
+val sum(val seq, val keyfun);
+val prod(val seq, val keyfun);
 val max2(val a, val b);
 val min2(val a, val b);
 val maxv(val first, struct args *rest);