diff --git a/Project/php/gateway/AbsGateway.php b/Project/php/gateway/AbsGateway.php
index 5e07146..2d47f38 100755
--- a/Project/php/gateway/AbsGateway.php
+++ b/Project/php/gateway/AbsGateway.php
@@ -15,7 +15,7 @@ abstract class AbsGateway
     }
 
     public abstract function add(array $parameters): int;
-    public abstract function remove(array $id): void;
+    public abstract function remove(int $id): void;
     public abstract function findAll(): array;
     public abstract function findById(int $id);
 }
\ No newline at end of file