diff --git a/Form/DataTransformer/ArrayEntityTransformer.php b/Form/DataTransformer/ArrayEntityTransformer.php
index ebfae45..5b0c596 100644
--- a/Form/DataTransformer/ArrayEntityTransformer.php
+++ b/Form/DataTransformer/ArrayEntityTransformer.php
@@ -80,7 +80,7 @@ public function reverseTransformChildren($children, Config $parent = null)
                 $value = array_filter($value);
             }
 
-            if (empty($value)) {
+            if (null === $value) {
                 continue;
             }
 
@@ -103,4 +103,4 @@ public function reverseTransformChildren($children, Config $parent = null)
 
         return $this->extension;
     }
-}
\ No newline at end of file
+}