diff --git a/db/routines/vn/procedures/ticket_setState.sql b/db/routines/vn/procedures/ticket_setState.sql
index 13a93380d..bde8e0692 100644
--- a/db/routines/vn/procedures/ticket_setState.sql
+++ b/db/routines/vn/procedures/ticket_setState.sql
@@ -31,8 +31,8 @@ BEGIN
 		CALL util.throw('ASSIGN_ZONE_FIRST');
 	END IF;
 
-	SET vCanChangeState = (
-			vStateCode <> 'ON_CHECKING' OR 
+	SET vCanChangeState = ((
+			vStateCode <> 'ON_CHECKING' AND vStateCode <> 'CHECKED') OR 
 			vticketAlertLevel < vPackedAlertLevel
 		)AND NOT (
 			vTicketStateCode IN ('CHECKED', 'CHECKING')
@@ -51,5 +51,6 @@ BEGIN
 	ELSE
 		CALL util.throw('INCORRECT_TICKET_STATE');
 	END IF;
+	
 END$$
 DELIMITER ;