diff --git a/src/resolve.c b/src/resolve.c
index 932c891b..b502feb8 100644
--- a/src/resolve.c
+++ b/src/resolve.c
@@ -96,6 +96,13 @@ static bool systemd_builder_add_dns(struct l_dbus_message_builder *builder,
 
 		buf_size = 4;
 
+		break;
+	case AF_INET6:
+		if (inet_pton(AF_INET6, dns, buf) < 1)
+			return false;
+
+		buf_size = 16;
+
 		break;
 	default:
 		return false;