diff --git a/headers/private/kernel/boot/net/NetDefs.h b/headers/private/kernel/boot/net/NetDefs.h
index c46bc0e320..8363d3b7ab 100644
--- a/headers/private/kernel/boot/net/NetDefs.h
+++ b/headers/private/kernel/boot/net/NetDefs.h
@@ -15,6 +15,15 @@
 #include <util/kernel_cpp.h>
 
 
+// Network endianness
+#ifndef htonl
+#	define htonl(x) B_HOST_TO_BENDIAN_INT32(x)
+#	define ntohl(x) B_BENDIAN_TO_HOST_INT32(x)
+#	define htons(x) B_HOST_TO_BENDIAN_INT16(x)
+#	define ntohs(x) B_BENDIAN_TO_HOST_INT16(x)
+#endif
+
+
 // Ethernet
 
 #define ETH_ALEN			6