1 files changed, 1 insertions, 0 deletions
diff --git a/lib.h b/lib.h
index c12690cc..d8656b07 100644
--- a/lib.h
+++ b/lib.h
@@ -490,6 +490,7 @@ val logtest(val, val);
 val lognot(val, val);
 val logtrunc(val a, val bits);
 val ash(val a, val bits);
+val maskv(val bits);
 val string_own(wchar_t *str);
 val string(const wchar_t *str);
 val string_utf8(const char *str);