diff --git a/src/include/ipv4/lwip/ip_addr.h b/src/include/ipv4/lwip/ip_addr.h
index 6fb82032..f48fa9e5 100644
--- a/src/include/ipv4/lwip/ip_addr.h
+++ b/src/include/ipv4/lwip/ip_addr.h
@@ -136,7 +136,7 @@ extern const ip_addr_t ip_addr_broadcast;
 /** Set complete address to zero */
 #define ip_addr_set_zero(ipaddr) (ipaddr)->addr = IPADDR_ANY
 /** Set address to loopback address */
-#define ip_addr_set_loopback(ipaddr) ((ipaddr)->addr = IPADDR_LOOPBACK)
+#define ip_addr_set_loopback(ipaddr) ((ipaddr)->addr = htonl(IPADDR_LOOPBACK))
 /** Safely copy one IP address to another and change byte order
  * from host- to network-order. */
 #define ip_addr_set_hton(dest, src) ((dest)->addr = \