diff --git a/src/core/tcp_in.c b/src/core/tcp_in.c
index edc5f2a9..a1beda17 100644
--- a/src/core/tcp_in.c
+++ b/src/core/tcp_in.c
@@ -269,8 +269,8 @@ tcp_input(struct pbuf *p, struct netif *inp)
     prev = NULL;
     for (lpcb = tcp_listen_pcbs.listen_pcbs; lpcb != NULL; lpcb = lpcb->next) {
       /* check if PCB is bound to specific netif */
-      if ((pcb->netif_idx != NETIF_NO_INDEX) &&
-          (pcb->netif_idx != netif_get_index(ip_data.current_input_netif))) {
+      if ((lpcb->netif_idx != NETIF_NO_INDEX) &&
+          (lpcb->netif_idx != netif_get_index(ip_data.current_input_netif))) {
         continue;
       }