diff --git a/sql.go b/sql.go
index 2a150eb..c3f1b22 100644
--- a/sql.go
+++ b/sql.go
@@ -169,7 +169,7 @@ func initDB() {
 	_, err = db.Exec(`CREATE TABLE obj_msg_auction_announce (
 							 obj_id			  BIGINT UNSIGNED NOT NULL
 							,lot_id           BIGINT UNSIGNED NOT NULL
-							,item			  VARCHAR(80)
+							,item_id		  BIGINT UNSIGNED
 							,cond			  VARCHAR(32)
 							,quality		  VARCHAR(32)
 							,seller_castle_id BIGINT UNSIGNED