diff --git a/backend/controllers/ContractController.php b/backend/controllers/ContractController.php
index 6e41790..c363b4e 100644
--- a/backend/controllers/ContractController.php
+++ b/backend/controllers/ContractController.php
@@ -160,14 +160,19 @@ class ContractController extends Controller {
 			throw new Exception ( "A szerződés nem törölhető" );
 		}
 		
-		$parts = TicketInstallmentRequest::find ()->andWhere ( [ 
+		$parts = TicketInstallmentRequest::find ()->andWhere (
+		    [
 				'not in',
 				'status',
 				[ 
 						TicketInstallmentRequest::$STATUS_CANCELED,
 						TicketInstallmentRequest::$STATUS_PENDING 
 				] 
-		] )->all ();
+		] )->andWhere([
+		    'id_contract' => $model->id_contract
+        ])
+
+            ->all ();
 		
 		if (count ( $parts ) > 0) {
 			throw new Exception ( "Már van feldolgozott részlet, nem lehet törölni" );