diff --git a/core/net/uip-nd6.c b/core/net/uip-nd6.c
index 30ee2980b..27553b897 100644
--- a/core/net/uip-nd6.c
+++ b/core/net/uip-nd6.c
@@ -129,6 +129,7 @@ static uip_nd6_opt_llao *nd6_opt_llao;   /**  Pointer to llao option in uip_buf
 
 #if !UIP_CONF_ROUTER            // TBD see if we move it to ra_input
 static uip_nd6_opt_prefix_info *nd6_opt_prefix_info; /**  Pointer to prefix information option in uip_buf */
+static uip_ipaddr_t ipaddr;
 #endif
 static uip_ds6_nbr_t *nbr; /**  Pointer to a nbr cache entry*/
 static uip_ds6_prefix_t *prefix; /**  Pointer to a prefix list entry */
@@ -854,6 +855,7 @@ uip_nd6_ra_input(void)
         if((nd6_opt_prefix_info->flagsreserved1 & UIP_ND6_RA_FLAG_AUTONOMOUS)
            && (nd6_opt_prefix_info->validlt != 0)
            && (nd6_opt_prefix_info->preflen == UIP_DEFAULT_PREFIX_LEN)) {
+	  
           uip_ipaddr_copy(&ipaddr, &nd6_opt_prefix_info->prefix);
           uip_ds6_set_addr_iid(&ipaddr, &uip_lladdr);
           addr = uip_ds6_addr_lookup(&ipaddr);