diff --git a/src/Bundle/ChillMainBundle/Form/Type/DataTransformer/EntityToJsonTransformer.php b/src/Bundle/ChillMainBundle/Form/Type/DataTransformer/EntityToJsonTransformer.php
index 109e83b14..9ab91222c 100644
--- a/src/Bundle/ChillMainBundle/Form/Type/DataTransformer/EntityToJsonTransformer.php
+++ b/src/Bundle/ChillMainBundle/Form/Type/DataTransformer/EntityToJsonTransformer.php
@@ -31,6 +31,10 @@ class EntityToJsonTransformer implements DataTransformerInterface
 
     public function reverseTransform($value)
     {
+        if ("" === $value) {
+            return null;
+        }
+
         $denormalized = json_decode($value, true, 512, JSON_THROW_ON_ERROR);
 
         if ($this->multiple) {
@@ -44,10 +48,6 @@ class EntityToJsonTransformer implements DataTransformerInterface
             );
         }
 
-        if ('' === $value) {
-            return null;
-        }
-
         return $this->denormalizeOne($denormalized);
     }