diff --git a/sql.go b/sql.go
index 96ec59e..fdfa8cb 100644
--- a/sql.go
+++ b/sql.go
@@ -147,6 +147,7 @@ func initDB() {
 							,quality		VARCHAR(32)
 							,seller         VARCHAR(32)
 							,buyer			VARCHAR(32)
+							,price          SMALLINT NOT NULL
 							,status			VARCHAR(32)
 							,end			TIMESTAMP NOT NULL
 							,FOREIGN KEY (obj_id) REFERENCES obj(id) ON DELETE CASCADE