diff --git a/skeletons/asn_system.h b/skeletons/asn_system.h
index a992230b8bb40e6660426cf299328d7fa83c9d53..e420ad2da679eeea8fd0175bb865cc211a8e26cd 100644
--- a/skeletons/asn_system.h
+++ b/skeletons/asn_system.h
@@ -29,9 +29,9 @@
 
 /* To avoid linking with ws2_32.lib, here's the definition of ntohl() */
 #define sys_ntohl(l)	((((l) << 24)  & 0xff000000)	\
-			| (((l) << 16) & 0xff0000)	\
-			| (((l) << 8)  & 0xff00)	\
-			| ((l) & 0xff))
+			| (((l) << 8) & 0xff0000)	\
+			| (((l) >> 8)  & 0xff00)	\
+			| ((l >> 24) & 0xff))
 
 #ifdef _MSC_VER			/* MSVS.Net */
 #ifndef __cplusplus