diff --git a/man2/getpid.2 b/man2/getpid.2
index 799441981..23ae72e09 100644
--- a/man2/getpid.2
+++ b/man2/getpid.2
@@ -44,7 +44,7 @@ returns the process ID of the parent of the calling process.
 .SH ERRORS
 These functions are always successful.
 .SH CONFORMING TO
-POSIX.1-2001, 4.3BSD, SVr4.
+POSIX.1-2001, POSIX.1-2008, 4.3BSD, SVr4.
 .SH NOTES
 If the caller's parent is in a different PID namespace (see
 .BR pid_namespaces (7)),