diff --git a/src/netif/ppp/ppp.c b/src/netif/ppp/ppp.c
index 50d5d34b..594d18c5 100644
--- a/src/netif/ppp/ppp.c
+++ b/src/netif/ppp/ppp.c
@@ -729,8 +729,8 @@ void ppp_input(ppp_pcb *pcb, struct pbuf *pb) {
        * Clip off the VJ header and prepend the rebuilt TCP/IP header and
        * pass the result to IP.
        */
-      if ((vj_uncompress_tcp(&pb, &pcb->vj_comp) >= 0) && (pcb->netif.input)) {
-        pcb->netif.input(pb, &pcb->netif);
+      if (vj_uncompress_tcp(&pb, &pcb->vj_comp) >= 0) {
+        ip_input(pb, &pcb->netif);
         return;
       }
       /* Something's wrong so drop it. */
@@ -743,8 +743,8 @@ void ppp_input(ppp_pcb *pcb, struct pbuf *pb) {
        * Process the TCP/IP header for VJ header compression and then pass
        * the packet to IP.
        */
-      if ((vj_uncompress_uncomp(pb, &pcb->vj_comp) >= 0) && pcb->netif.input) {
-        pcb->netif.input(pb, &pcb->netif);
+      if (vj_uncompress_uncomp(pb, &pcb->vj_comp) >= 0) {
+        ip_input(pb, &pcb->netif);
         return;
       }
       /* Something's wrong so drop it. */