diff --git a/posix/tst-getconf.sh b/posix/tst-getconf.sh
index 44efab83a3..6d99943eb4 100644
--- a/posix/tst-getconf.sh
+++ b/posix/tst-getconf.sh
@@ -52,6 +52,10 @@ IOV_MAX
 LINE_MAX
 LOGIN_NAME_MAX
 NGROUPS_MAX
+_NPROCESSORS_CONF
+NPROCESSORS_CONF
+_NPROCESSORS_ONLN
+NPROCESSORS_ONLN
 MQ_OPEN_MAX
 MQ_PRIO_MAX
 OPEN_MAX