1 files changed, 1 insertions, 1 deletions
diff --git a/Http/Firewall/AbstractAuthenticationListener.php b/Http/Firewall/AbstractAuthenticationListener.php
index 5270e8d..1765f7f 100644
--- a/Http/Firewall/AbstractAuthenticationListener.php
+++ b/Http/Firewall/AbstractAuthenticationListener.php
@@ -144,7 +144,7 @@ abstract class AbstractAuthenticationListener implements ListenerInterface
                 $this->sessionStrategy->onAuthentication($request, $returnValue);
 
                 $response = $this->onSuccess($event, $request, $returnValue);
-            } else if ($returnValue instanceof Response) {
+            } elseif ($returnValue instanceof Response) {
                 $response = $returnValue;
             } else {
                 throw new \RuntimeException('attemptAuthentication() must either return a Response, an implementation of TokenInterface, or null.');