diff --git a/src/netif/ppp/ppp.h b/src/netif/ppp/ppp.h
index 53c6ca80..fda50588 100644
--- a/src/netif/ppp/ppp.h
+++ b/src/netif/ppp/ppp.h
@@ -468,9 +468,6 @@ typedef struct ppp_pcb_s {
   /* FIXME: do we really need such a large buffer? The typical 1500 bytes seem too much. */
   u_char nak_buffer[PPP_MRU];    /* where we construct a nak packet */
   int lcp_loopbackfail;
-#if PPPOS_SUPPORT
-
-#endif /* #if PPPOS_SUPPORT */
 
   fsm ipcp_fsm;          /* IPCP fsm structure */
   ipcp_options ipcp_wantoptions;    /* Options that we want to request */
@@ -489,10 +486,6 @@ typedef struct ppp_pcb_s {
    */
   u_char outpacket_buf[PPP_MRU+PPP_HDRLEN]; /* buffer for outgoing packet */
 
-#if PPPOS_SUPPORT
-  u_char inpacket_buf[PPP_MRU+PPP_HDRLEN]; /* buffer for incoming packet */
-#endif /* PPPOS_SUPPORT */
-
 } ppp_pcb;
 
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