diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index cbb59eb..e980416 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -440,7 +440,7 @@
  */
 extern const char *ip_vs_proto_name(unsigned proto);
 extern void ip_vs_init_hash_table(struct list_head *table, int rows);
-#define IP_VS_INIT_HASH_TABLE(t) ip_vs_init_hash_table(t, sizeof(t)/sizeof(t[0]))
+#define IP_VS_INIT_HASH_TABLE(t) ip_vs_init_hash_table((t), ARRAY_SIZE((t)))
 
 #define IP_VS_APP_TYPE_FTP	1