diff --git a/wan-failover b/wan-failover
index fde9d1f..7d4b842 100755
--- a/wan-failover
+++ b/wan-failover
@@ -50,9 +50,9 @@ cfg_init() {
 	check_interval=$(ourcfg globals.check_interval || echo $default_check_interval)
 
     primary_iface=$(ourcfg globals.primary || echo '')
-    primary_ifname=$(cfg network.$primary_iface.ifname || echo '')
+    primary_ifname=$(ourcfg wan.ifname || cfg network.$primary_iface.ifname || cfg network.$primary_iface.device || echo '')
     fallback_iface=$(ourcfg globals.fallback || echo '')
-    fallback_ifname=$(cfg network.$fallback_iface.ifname || echo '')
+    fallback_ifname=$(ourcfg wwan.ifname || cfg network.$fallback_iface.ifname || cfg network.$fallback_iface.device || echo '')
 
     primary_health_ips=$(ourcfg $primary_iface.ip || echo $default_health_ips)
     primary_ping_count=$(ourcfg $primary_iface.count || echo $default_ping_count)
diff --git a/wan-failover.config b/wan-failover.config
index 3f4f172..e6c53a8 100644
--- a/wan-failover.config
+++ b/wan-failover.config
@@ -14,6 +14,7 @@ config interface 'wan'
 	option timeout '2'
 	option down '3'
 	option up '5'
+#	option ifname 'eth2'
 
 config interface 'wwan'
 	list ip '8.8.8.8'
@@ -25,3 +26,4 @@ config interface 'wwan'
 	option timeout '2'
 	option down '3'
 	option up '5'
+#	option ifname 'wwan0'