diff --git a/src/core/ipv4/ip4.c b/src/core/ipv4/ip4.c
index 30c52d50..eb2e9fac 100644
--- a/src/core/ipv4/ip4.c
+++ b/src/core/ipv4/ip4.c
@@ -866,9 +866,6 @@ void
 ip_debug_print(struct pbuf *p)
 {
   struct ip_hdr *iphdr = (struct ip_hdr *)p->payload;
-  u8_t *payload;
-
-  payload = (u8_t *)iphdr + IP_HLEN;
 
   LWIP_DEBUGF(IP_DEBUG, ("IP header:\n"));
   LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n"));