diff --git a/man3/wprintf.3 b/man3/wprintf.3
index f8b8fc2d0..985b60df7 100644
--- a/man3/wprintf.3
+++ b/man3/wprintf.3
@@ -11,7 +11,7 @@
 .\"   OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
 .\"   ISO/IEC 9899:1999
 .\"
-.TH WPRINTF 3  2010-09-20 "GNU" "Linux Programmer's Manual"
+.TH WPRINTF 3  2011-09-17 "GNU" "Linux Programmer's Manual"
 .SH NAME
 wprintf, fwprintf, swprintf, vwprintf, vfwprintf, vswprintf \- formatted
 wide-character output conversion
@@ -46,6 +46,9 @@ All functions shown above:
 .\" .BR vfwprintf (),
 .\" .BR vswprintf ():
 _XOPEN_SOURCE\ >=\ 500 || _ISOC99_SOURCE ||
+.br
+_ISOC95_SOURCE /* Since glibc 2.12 */ ||
+.br
 _POSIX_C_SOURCE\ >=\ 200112L;
 .br
 or