diff --git a/contrib/check-config.sh b/contrib/check-config.sh
index 9021ec56fa..1482777f1a 100755
--- a/contrib/check-config.sh
+++ b/contrib/check-config.sh
@@ -163,7 +163,7 @@ flags=(
 	NAMESPACES {NET,PID,IPC,UTS}_NS
 	DEVPTS_MULTIPLE_INSTANCES
 	CGROUPS CGROUP_CPUACCT CGROUP_DEVICE CGROUP_FREEZER CGROUP_SCHED CPUSETS
-	MACVLAN VETH BRIDGE
+	MACVLAN VETH BRIDGE BRIDGE_NETFILTER
 	NF_NAT_IPV4 IP_NF_FILTER IP_NF_TARGET_MASQUERADE
 	NETFILTER_XT_MATCH_{ADDRTYPE,CONNTRACK}
 	NF_NAT NF_NAT_NEEDED
@@ -184,6 +184,8 @@ echo 'Optional Features:'
 }
 flags=(
 	RESOURCE_COUNTERS
+	BLK_CGROUP
+	IOSCHED_CFQ
 	CGROUP_PERF
 	CFS_BANDWIDTH
 )