1 files changed, 1 insertions, 0 deletions
diff --git a/lib.h b/lib.h
index 0bc7013e..b5b59b38 100644
--- a/lib.h
+++ b/lib.h
@@ -1233,6 +1233,7 @@ val set_diff(val list1, val list2, val testfun, val keyfun);
 val diff(val seq1, val seq2, val testfun, val keyfun);
 val symdiff(val seq1, val seq2, val testfun, val keyfun);
 val isec(val list1, val list2, val testfun, val keyfun);
+val isecp(val list1, val list2, val testfun, val keyfun);
 val uni(val list1, val list2, val testfun, val keyfun);
 val copy(val seq);
 val length(val seq);