diff --git a/uip/uip.c b/uip/uip.c
index 653591a..98e18b5 100644
--- a/uip/uip.c
+++ b/uip/uip.c
@@ -466,7 +466,7 @@ uip_connect(register __xdata uip_ipaddr_t *ripaddr, __xdata u16_t rport) __banke
 /*---------------------------------------------------------------------------*/
 #if UIP_UDP
 __xdata struct uip_udp_conn *
-uip_udp_new(uip_ipaddr_t *ripaddr, u16_t rport) __banked
+uip_udp_new(__xdata uip_ipaddr_t *ripaddr, u16_t rport) __banked
 {
   __xdata struct uip_udp_conn *conn;
   
diff --git a/uip/uip.h b/uip/uip.h
index 58b3d6c..718d607 100644
--- a/uip/uip.h
+++ b/uip/uip.h
@@ -763,7 +763,7 @@ void uip_send(register __xdata const void *data, register uint16_t len) __banked
  * \return The uip_udp_conn structure for the new connection or NULL
  * if no connection could be allocated.
  */
-__xdata struct uip_udp_conn *uip_udp_new(uip_ipaddr_t *ripaddr, u16_t rport) __banked;
+__xdata struct uip_udp_conn *uip_udp_new(__xdata uip_ipaddr_t *ripaddr, u16_t rport) __banked;
 
 /**
  * Removed a UDP connection.