1 files changed, 1 insertions, 1 deletions

diff --git a/src/Wallabag/CoreBundle/Form/DataTransformer/StringToListTransformer.php b/src/Wallabag/CoreBundle/Form/DataTransformer/StringToListTransformer.php
index cb4bee83..57dbc95e 100644
--- a/src/Wallabag/CoreBundle/Form/DataTransformer/StringToListTransformer.php
+++ b/src/Wallabag/CoreBundle/Form/DataTransformer/StringToListTransformer.php
@@ -48,7 +48,7 @@ class StringToListTransformer implements DataTransformerInterface
      */
     public function reverseTransform($string)
     {
-        if ($string === null) {
+        if (null === $string) {
             return;
         }