diff --git a/lib/libc/sys/unlink.2 b/lib/libc/sys/unlink.2
index dbab6642df57..75d9ff640040 100644
--- a/lib/libc/sys/unlink.2
+++ b/lib/libc/sys/unlink.2
@@ -32,7 +32,7 @@
 .\"     @(#)unlink.2	8.1 (Berkeley) 6/4/93
 .\" $FreeBSD$
 .\"
-.Dd February 23, 2005
+.Dd December 9, 2006
 .Dt UNLINK 2
 .Os
 .Sh NAME
@@ -87,11 +87,13 @@ Too many symbolic links were encountered in translating the pathname.
 .It Bq Er EPERM
 The named file is a directory.
 .It Bq Er EPERM
-The named file has its immutable, undeletable or append-only
-flag set, see the
+The named file has its immutable, undeletable or append-only flag set, see the
 .Xr chflags 2
 manual page for more information.
 .It Bq Er EPERM
+The parent directory of the named file has its immutable or append-only flag
+set.
+.It Bq Er EPERM
 The directory containing the file is marked sticky,
 and neither the containing directory nor the file to be removed
 are owned by the effective user ID.