diff --git a/src/include/lwip/opt.h b/src/include/lwip/opt.h
index ecc59540..97f99cfa 100644
--- a/src/include/lwip/opt.h
+++ b/src/include/lwip/opt.h
@@ -2061,7 +2061,7 @@
 #ifndef VJ_SUPPORT
 #define VJ_SUPPORT                      1
 #endif
-#if !PPPOS_SUPPORT
+#if !PPPOS_SUPPORT || !PPP_IPV4_SUPPORT
 #undef VJ_SUPPORT
 #define VJ_SUPPORT                      0   /* VJ compression is only supported for PPPoS. */
 #endif /* !PPPOS_SUPPORT */
diff --git a/src/include/netif/ppp/ppp.h b/src/include/netif/ppp/ppp.h
index 815e18c1..d7208bf5 100644
--- a/src/include/netif/ppp/ppp.h
+++ b/src/include/netif/ppp/ppp.h
@@ -330,7 +330,12 @@ struct ppp_pcb_s {
   unsigned int ipcp_is_up              :1; /* have called ipcp_up() */
   unsigned int if4_up                  :1; /* True when the IPv4 interface is up. */
   unsigned int proxy_arp_set           :1; /* Have created proxy arp entry */
+#if VJ_SUPPORT
+  unsigned int vj_enabled              :1; /* Flag indicating VJ compression enabled. */
 #else
+  unsigned int                         :1; /* 1 bit of padding */
+#endif /* VJ_SUPPORT */
+#else /* PPP_IPV4_SUPPORT */
   unsigned int                         :4; /* 4 bit of padding */
 #endif /* PPP_IPV4_SUPPORT */
 #if PPP_IPV6_SUPPORT
@@ -341,11 +346,6 @@ struct ppp_pcb_s {
 #endif /* PPP_IPV6_SUPPORT */
   unsigned int ask_for_local           :1; /* request our address from peer */
   unsigned int lcp_echo_timer_running  :1; /* set if a timer is running */
-#if VJ_SUPPORT
-  unsigned int vj_enabled              :1; /* Flag indicating VJ compression enabled. */
-#else
-  unsigned int                         :1; /* 1 bit of padding */
-#endif /* VJ_SUPPORT */
   unsigned int                         :5; /* 5 bits of padding to round out to 16 bits */
 
   u32_t last_xmit;               /* Time of last transmission. */
diff --git a/src/include/netif/ppp/ppp_impl.h b/src/include/netif/ppp/ppp_impl.h
index 96648d99..f6cee65a 100644
--- a/src/include/netif/ppp/ppp_impl.h
+++ b/src/include/netif/ppp/ppp_impl.h
@@ -431,7 +431,9 @@ int sifproxyarp(ppp_pcb *pcb, u32_t his_adr);
 int cifproxyarp(ppp_pcb *pcb, u32_t his_adr);
 int sdns(ppp_pcb *pcb, u32_t ns1, u32_t ns2);
 int cdns(ppp_pcb *pcb, u32_t ns1, u32_t ns2);
+#if VJ_SUPPORT
 int sifvjcomp(ppp_pcb *pcb, int vjcomp, int cidcomp, int maxcid);
+#endif /* VJ_SUPPORT */
 int sifup(ppp_pcb *pcb);
 int sifdown (ppp_pcb *pcb);
 #endif /* PPP_IPV4_SUPPORT */
diff --git a/src/netif/ppp/ipcp.c b/src/netif/ppp/ipcp.c
index 72b47951..4e97284f 100644
--- a/src/netif/ppp/ipcp.c
+++ b/src/netif/ppp/ipcp.c
@@ -1852,8 +1852,10 @@ static void ipcp_up(fsm *f) {
     }
 #endif /* Unused */
 
+#if VJ_SUPPORT
     /* set tcp compression */
     sifvjcomp(pcb, ho->neg_vj, ho->cflag, ho->maxslotindex);
+#endif /* VJ_SUPPORT */
 
 #if DEMAND_SUPPORT
     /*
@@ -2012,7 +2014,9 @@ static void ipcp_down(fsm *f) {
 	pcb->ipcp_is_up = 0;
 	np_down(pcb, PPP_IP);
     }
+#if VJ_SUPPORT
     sifvjcomp(pcb, 0, 0, 0);
+#endif /* VJ_SUPPORT */
 
 #if PPP_STATS_SUPPORT
     print_link_stats(); /* _after_ running the notifiers and ip_down_hook(),
diff --git a/src/netif/ppp/ppp.c b/src/netif/ppp/ppp.c
index d52eba13..18880c4b 100644
--- a/src/netif/ppp/ppp.c
+++ b/src/netif/ppp/ppp.c
@@ -957,6 +957,7 @@ int cdns(ppp_pcb *pcb, u32_t ns1, u32_t ns2) {
   return 1;
 }
 
+#if VJ_SUPPORT
 /********************************************************************
  *
  * sifvjcomp - config tcp header compression
@@ -967,6 +968,7 @@ int sifvjcomp(ppp_pcb *pcb, int vjcomp, int cidcomp, int maxcid) {
   }
   return 0;
 }
+#endif /* VJ_SUPPORT */
 
 /*
  * sifup - Config the interface up and enable IP packets to pass.