diff --git a/src/Entity/Intervention.php b/src/Entity/Intervention.php
index 3b2aeee..28d479b 100644
--- a/src/Entity/Intervention.php
+++ b/src/Entity/Intervention.php
@@ -27,6 +27,7 @@ class Intervention implements EntityInterface
 
     /**
      * @ORM\ManyToOne(targetEntity=Establishment::class, inversedBy="interventions")
+     * @ORM\JoinColumn(nullable=false, onDelete="CASCADE")
      */
     private $establishment;