diff --git a/man2/mkdir.2 b/man2/mkdir.2
index e2da38282..7cbc3296b 100644
--- a/man2/mkdir.2
+++ b/man2/mkdir.2
@@ -203,7 +203,7 @@ was added to Linux in kernel 2.6.16;
 library support was added to glibc in version 2.4.
 .SH CONFORMING TO
 .BR mkdir ():
-SVr4, BSD, POSIX.1-2001.
+SVr4, BSD, POSIX.1-2001, POSIX.1-2008.
 .\" SVr4 documents additional EIO, EMULTIHOP
 
 .BR mkdirat ():