diff --git a/dhcp.h b/dhcp.h
index fdcc35d..991361b 100644
--- a/dhcp.h
+++ b/dhcp.h
@@ -35,7 +35,7 @@ struct dhcp_state {
 	uint32_t rebind;
 	uint32_t renewal;
 
-	struct uip_udp_conn *conn;
+	__xdata struct uip_udp_conn *conn;
 };
 
 typedef struct dhcp_state uip_udp_appstate_t;
diff --git a/uip/uip.c b/uip/uip.c
index 6afd3be..653591a 100644
--- a/uip/uip.c
+++ b/uip/uip.c
@@ -465,7 +465,7 @@ uip_connect(register __xdata uip_ipaddr_t *ripaddr, __xdata u16_t rport) __banke
 #endif /* UIP_ACTIVE_OPEN */
 /*---------------------------------------------------------------------------*/
 #if UIP_UDP
-struct uip_udp_conn *
+__xdata struct uip_udp_conn *
 uip_udp_new(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 ac644f9..58b3d6c 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.
  */
-struct uip_udp_conn *uip_udp_new(uip_ipaddr_t *ripaddr, u16_t rport) __banked;
+__xdata struct uip_udp_conn *uip_udp_new(uip_ipaddr_t *ripaddr, u16_t rport) __banked;
 
 /**
  * Removed a UDP connection.