diff --git a/src/Symfony/Component/Security/Http/Firewall/SwitchUserListener.php b/src/Symfony/Component/Security/Http/Firewall/SwitchUserListener.php
index e383b48768..4b82fa1f8c 100644
--- a/src/Symfony/Component/Security/Http/Firewall/SwitchUserListener.php
+++ b/src/Symfony/Component/Security/Http/Firewall/SwitchUserListener.php
@@ -153,7 +153,6 @@ class SwitchUserListener implements ListenerInterface
 
             try {
                 $this->provider->loadUserByUsername($nonExistentUsername);
-                throw new \LogicException('AuthenticationException expected');
             } catch (AuthenticationException $e) {
             }
         } catch (AuthenticationException $e) {