diff --git a/src/Bundle/ChillDocStoreBundle/Validator/Constraints/AsyncFileExists.php b/src/Bundle/ChillDocStoreBundle/Validator/Constraints/AsyncFileExists.php
index c0b5ec79c..b76ddae68 100644
--- a/src/Bundle/ChillDocStoreBundle/Validator/Constraints/AsyncFileExists.php
+++ b/src/Bundle/ChillDocStoreBundle/Validator/Constraints/AsyncFileExists.php
@@ -21,7 +21,10 @@ final class AsyncFileExists extends Constraint
     public function __construct(?array $options = null, ?string $message = null, ?array $groups = null, $payload = null)
     {
         parent::__construct($options ?? [], $groups, $payload);
-        $this->message = $message;
+
+        if (null !== $message) {
+            $this->message = $message;
+        }
     }
 
     public function validatedBy()