diff --git a/src/include/netif/ppp/pppos.h b/src/include/netif/ppp/pppos.h
index 26fd2578..da884503 100644
--- a/src/include/netif/ppp/pppos.h
+++ b/src/include/netif/ppp/pppos.h
@@ -66,7 +66,6 @@ typedef u_char ext_accm[32];
 typedef struct pppos_pcb_s pppos_pcb;
 struct pppos_pcb_s {
   /* -- below are data that will NOT be cleared between two sessions */
-  pppos_pcb *next;
   ppp_pcb *ppp;                    /* PPP PCB */
   sio_fd_t fd;                     /* File device ID of port. */