diff --git a/lib/libc/gen/sysconf.3 b/lib/libc/gen/sysconf.3
index 4af6f821f138..4631aeb6bf1b 100644
--- a/lib/libc/gen/sysconf.3
+++ b/lib/libc/gen/sysconf.3
@@ -28,7 +28,7 @@
 .\"	@(#)sysconf.3	8.3 (Berkeley) 4/19/94
 .\" $FreeBSD$
 .\"
-.Dd February 13, 2011
+.Dd April 26, 2013
 .Dt SYSCONF 3
 .Os
 .Sh NAME
@@ -82,7 +82,7 @@ The number of processors configured.
 .It Li _SC_NPROCESSORS_ONLN
 The number of processors currently online.
 .It Li _SC_OPEN_MAX
-The maximum number of open files per user id.
+One more than the maximum value the system may assign to a new file descriptor.
 .It Li _SC_PAGESIZE
 The size of a system page in bytes.
 .It Li _SC_PAGE_SIZE