diff --git a/share/man/man7/hier.7 b/share/man/man7/hier.7
index 5a2c9a8aa2a4..f6e59efd90d1 100644
--- a/share/man/man7/hier.7
+++ b/share/man/man7/hier.7
@@ -275,6 +275,8 @@ see
 .It Li lib/
 archive libraries
 .Bl -tag -width Fl -compact
+.It Li aout/
+a.out archive libraries
 .It Li compat/
 shared libraries for compatibility
 .Bl -tag -width Fl -compact