diff --git a/man2/getpid.2 b/man2/getpid.2
index ace18c67e..3858118f3 100644
--- a/man2/getpid.2
+++ b/man2/getpid.2
@@ -39,6 +39,8 @@ routines that generate unique temporary filenames.)
 
 .BR getppid ()
 returns the process ID of the parent of the current process.
+.SH ERRORS
+These functions are always successful.
 .SH "CONFORMING TO"
 POSIX.1-2001, 4.3BSD, SVr4
 .SH "SEE ALSO"