diff --git a/openwrt/package/iptables/kernelconfig.mk b/openwrt/package/iptables/kernelconfig.mk
index a0b420f198..bac26e20c0 100644
--- a/openwrt/package/iptables/kernelconfig.mk
+++ b/openwrt/package/iptables/kernelconfig.mk
@@ -33,6 +33,7 @@ ext-$(CONFIG_IP_NF_TARGET_MARK) += MARK
 #ext-$(CONFIG_IP_NF_TARGET_LOG) += LOG
 ext-$(CONFIG_IP_NF_TARGET_ULOG) += ULOG
 #ext-$(CONFIG_IP_NF_TARGET_TCPMSS) += TCPMSS
+ext-$(CONFIG_IP_NF_TARGET_NETMAP) += NETMAP
 
 # add extensions that don't depend on kernel config
 ext-m += TTL