Index: uspace/srv/net/il/ip/ip.c
===================================================================
--- uspace/srv/net/il/ip/ip.c	(revision 46d4d9f449e7933280b1877c70448602ec0ab0ae)
+++ uspace/srv/net/il/ip/ip.c	(revision df6b760f1bd75c44a53207ccec0e9abb8ca6ea0e)
@@ -461,5 +461,5 @@
 	
 	if (ip_netif->packet_dimension.content < IP_MIN_CONTENT) {
-		printf("Maximum transmission unit %d bytes is too small, at "
+		printf("Maximum transmission unit %zu bytes is too small, at "
 		    "least %d bytes are needed\n",
 		    ip_netif->packet_dimension.content, IP_MIN_CONTENT);
@@ -502,5 +502,5 @@
 	fibril_rwlock_write_unlock(&ip_globals.netifs_lock);
 
-	printf("%s: Device %d changed MTU to %d\n", NAME, device_id, mtu);
+	printf("%s: Device %d changed MTU to %zu\n", NAME, device_id, mtu);
 
 	return EOK;