1 files changed, 7 insertions, 1 deletions

diff --git a/src/Wallabag/CoreBundle/Helper/DetectActiveTheme.php b/src/Wallabag/CoreBundle/Helper/DetectActiveTheme.php
index 679186c0..054a3752 100644
--- a/src/Wallabag/CoreBundle/Helper/DetectActiveTheme.php
+++ b/src/Wallabag/CoreBundle/Helper/DetectActiveTheme.php
@@ -42,7 +42,13 @@ class DetectActiveTheme implements DeviceDetectionInterface
      */
     public function getType()
     {
-        $user = $this->securityContext->getToken()->getUser();
+        $token = $this->securityContext->getToken();
+
+        if (is_null($token)) {
+            return $this->defaultTheme;
+        }
+
+        $user = $token->getUser();
 
         if (!$user instanceof User) {
             return $this->defaultTheme;