diff --git a/core/net/uip.h b/core/net/uip.h
index 3a5ab0fe1..d938f9df0 100644
--- a/core/net/uip.h
+++ b/core/net/uip.h
@@ -1769,7 +1769,6 @@ typedef struct uip_ext_hdr_opt_padn {
   uint8_t opt_len;
 } uip_ext_hdr_opt_padn;
 
-#if UIP_CONF_IPV6_RPL
 /* RPL option */
 typedef struct uip_ext_hdr_opt_rpl {
   uint8_t opt_type;
@@ -1778,7 +1777,6 @@ typedef struct uip_ext_hdr_opt_rpl {
   uint8_t instance;
   uint16_t senderrank;
 } uip_ext_hdr_opt_rpl;
-#endif /* UIP_CONF_IPV6_RPL */
 
 /* TCP header */
 struct uip_tcp_hdr {
@@ -1850,9 +1848,7 @@ struct uip_udp_hdr {
 /** \brief  Destination and Hop By Hop extension headers option types */
 #define UIP_EXT_HDR_OPT_PAD1  0
 #define UIP_EXT_HDR_OPT_PADN  1
-#if UIP_CONF_IPV6_RPL
 #define UIP_EXT_HDR_OPT_RPL   0x63
-#endif /* UIP_CONF_IPV6_RPL */
 
 /** @} */
 
diff --git a/platform/micaz/contiki-conf.h b/platform/micaz/contiki-conf.h
index 493ed08b1..7547af918 100644
--- a/platform/micaz/contiki-conf.h
+++ b/platform/micaz/contiki-conf.h
@@ -71,7 +71,6 @@
 
 #define NETSTACK_CONF_NETWORK rime_driver
 #define NETSTACK_CONF_MAC     csma_driver
-#define NETSTACK_CONF_MAC     nullmac_driver
 #define NETSTACK_CONF_RDC     cxmac_driver
 #define NETSTACK_CONF_FRAMER  framer_802154
 
@@ -116,7 +115,7 @@
 #define UIP_CONF_LLH_LEN                0
 
 #define UIP_CONF_ROUTER                 0
-#define UIP_CONF_IPV6_RPL               0
+#define UIP_CONF_IPV6_RPL               1
 
 /* configure number of neighbors and routes */
 #define UIP_CONF_DS6_NBR_NBU     5