Sicslowpan uses twice UIP_LLH_LEN for IPPAYLOAD_BUF
/* NOTE: In the multiple-reassembly context there is only room for the header / first fragment */
#define SICSLOWPAN_IP_BUF(buf) ((struct uip_ip_hdr *)buf)
#define SICSLOWPAN_UDP_BUF(buf) ((struct uip_udp_hdr *)&buf[UIP_IPH_LEN])
-#define SICSLOWPAN_IPPAYLOAD_BUF(buf) (&buf[UIP_LLIPH_LEN])
+#define SICSLOWPAN_IPPAYLOAD_BUF(buf) (&buf[UIP_IPH_LEN])
#define UIP_IP_BUF ((struct uip_ip_hdr *)&uip_buf[UIP_LLH_LEN])
