diff --git a/sys-libs/glibc/glibc-9999.ebuild b/sys-libs/glibc/glibc-9999.ebuild
index ceafddea0f5be..68c5b93250493 100644
--- a/sys-libs/glibc/glibc-9999.ebuild
+++ b/sys-libs/glibc/glibc-9999.ebuild
@@ -179,6 +179,7 @@ XFAIL_TEST_LIST=(
 
 	# Fails with certain PORTAGE_NICENESS/PORTAGE_SCHEDULING_POLICY
 	tst-sched1
+	tst-sched_setattr
 
 	# Fails regularly, unreliable
 	tst-valgrind-smoke