diff --git a/src/core/tcp_in.c b/src/core/tcp_in.c
index 3baae55c..45628fb8 100644
--- a/src/core/tcp_in.c
+++ b/src/core/tcp_in.c
@@ -130,7 +130,8 @@ tcp_input(struct pbuf *p, struct netif *inp)
   }
 
   /* Don't even process incoming broadcasts/multicasts. */
-  if (ip_addr_isbroadcast(&(iphdr->dest), &(inp->netmask)) ||
+  if (((inp->flags & NETIF_FLAG_BROADCAST) &&
+  		ip_addr_isbroadcast(&(iphdr->dest), &(inp->netmask))) ||
      ip_addr_ismulticast(&(iphdr->dest))) {
     pbuf_free(p);
     return;