1 files changed, 2 insertions, 1 deletions
diff --git a/Core/Authentication/Provider/PreAuthenticatedAuthenticationProvider.php b/Core/Authentication/Provider/PreAuthenticatedAuthenticationProvider.php
index f4d0959..11c3cda 100644
--- a/Core/Authentication/Provider/PreAuthenticatedAuthenticationProvider.php
+++ b/Core/Authentication/Provider/PreAuthenticatedAuthenticationProvider.php
@@ -53,8 +53,9 @@ class PreAuthenticatedAuthenticationProvider implements AuthenticationProviderIn
     public function authenticate(TokenInterface $token)
     {
         if (!$this->supports($token)) {
-            return null;
+            return;
         }
+
         if (!$user = $token->getUser()) {
             throw new BadCredentialsException('No pre-authenticated principal found in request.');
         }