diff --git a/man2/sigpending.2 b/man2/sigpending.2
index e289edca0..ed814ba52 100644
--- a/man2/sigpending.2
+++ b/man2/sigpending.2
@@ -26,7 +26,7 @@
 .\"
 .\" 2005-09-15, mtk, Created new page by splitting off from sigaction.2
 .\"
-.TH SIGPENDING 2 2008-10-04 "Linux" "Linux Programmer's Manual"
+.TH SIGPENDING 2 2013-04-19 "Linux" "Linux Programmer's Manual"
 .SH NAME
 sigpending \- examine pending signals
 .SH SYNOPSIS
@@ -53,6 +53,9 @@ The mask of pending signals is returned in
 .SH RETURN VALUE
 .BR sigpending ()
 returns 0 on success and \-1 on error.
+In the event of an error,
+.I errno
+is set to indicate the cause.
 .SH ERRORS
 .TP
 .B EFAULT