diff --git a/src/Bundle/ChillMainBundle/Workflow/Validator/EntityWorkflowCreation.php b/src/Bundle/ChillMainBundle/Workflow/Validator/EntityWorkflowCreation.php
index 34f024884..b2ec671ef 100644
--- a/src/Bundle/ChillMainBundle/Workflow/Validator/EntityWorkflowCreation.php
+++ b/src/Bundle/ChillMainBundle/Workflow/Validator/EntityWorkflowCreation.php
@@ -27,7 +27,7 @@ class EntityWorkflowCreation extends \Symfony\Component\Validator\Constraint
 
     public string $messageWorkflowNotAvailable = 'Workflow is not valid';
 
-    public function getTargets()
+    public function getTargets(): array
     {
         return [self::CLASS_CONSTRAINT];
     }