diff --git a/contrib/check-config.sh b/contrib/check-config.sh
index a667c9669b..4378bf4155 100755
--- a/contrib/check-config.sh
+++ b/contrib/check-config.sh
@@ -283,8 +283,12 @@ else
 	netprio=CGROUP_NET_PRIO
 fi
 
+if [ "$kernelMajor" -lt 5 ]; then
+	check_flags IOSCHED_CFQ CFQ_GROUP_IOSCHED
+fi
+
 flags=(
-	BLK_CGROUP BLK_DEV_THROTTLING IOSCHED_CFQ CFQ_GROUP_IOSCHED
+	BLK_CGROUP BLK_DEV_THROTTLING
 	CGROUP_PERF
 	CGROUP_HUGETLB
 	NET_CLS_CGROUP $netprio