diff --git a/package/network/services/dnsmasq/files/dnsmasq.init b/package/network/services/dnsmasq/files/dnsmasq.init
index af5ca5822ea..4cef2f4c295 100755
--- a/package/network/services/dnsmasq/files/dnsmasq.init
+++ b/package/network/services/dnsmasq/files/dnsmasq.init
@@ -568,6 +568,7 @@ dhcp_add() {
 	config_get ra_management "$cfg" ra_management
 	config_get ra_preference "$cfg" ra_preference
 	config_get dns "$cfg" dns
+	config_get dns_sl "$cfg" domain
 
 	config_list_foreach "$cfg" "interface_name" append_interface_name "$ifname"
 
@@ -647,6 +648,13 @@ dhcp_add() {
 		fi
 
 		dhcp_option_append "option6:dns-server,$dnss" "$networkid"
+
+		if [ -n "$dns_sl" ]; then
+			ddssl=""
+			for dd in $dns_sl; do append ddssl "$dd" ","; done
+		fi
+
+		dhcp_option_append "option6:domain-search,$ddssl" "$networkid"
 	fi
 
 	dhcp_option_add "$cfg" "$networkid" 0