1 files changed, 1 insertions, 1 deletions

diff --git a/src/Wallabag/CoreBundle/Helper/DetectActiveTheme.php b/src/Wallabag/CoreBundle/Helper/DetectActiveTheme.php
index 23e98042..9f90ee3e 100644
--- a/src/Wallabag/CoreBundle/Helper/DetectActiveTheme.php
+++ b/src/Wallabag/CoreBundle/Helper/DetectActiveTheme.php
@@ -44,7 +44,7 @@ class DetectActiveTheme implements DeviceDetectionInterface
     {
         $token = $this->tokenStorage->getToken();
 
-        if (is_null($token)) {
+        if (null === $token) {
             return $this->defaultTheme;
         }