diff --git a/Services/JWSProvider/LcobucciJWSProvider.php b/Services/JWSProvider/LcobucciJWSProvider.php
index 3e050666..cb9d1b25 100644
--- a/Services/JWSProvider/LcobucciJWSProvider.php
+++ b/Services/JWSProvider/LcobucciJWSProvider.php
@@ -126,7 +126,7 @@ public function create(array $payload, array $header = [])
             unset($payload['sub']);
         }
 
-        if (class_exists(RegisteredClaims::class)) {
+        if (interface_exists(RegisteredClaims::class)) {
             $this->addStandardClaims($jws, $payload);
         }
 
@@ -272,7 +272,7 @@ private function addStandardClaims(Builder $builder, array &$payload)
         ];
 
         foreach ($payload as $claim => $value) {
-            if (!\in_array($claim, $mutatorMap, true)) {
+            if (!isset($mutatorMap[$claim])) {
                 continue;
             }
 
diff --git a/Tests/Functional/SubscribedTokenAuthenticationTest.php b/Tests/Functional/SubscribedTokenAuthenticationTest.php
index 1b147b3f..d5a3a50c 100644
--- a/Tests/Functional/SubscribedTokenAuthenticationTest.php
+++ b/Tests/Functional/SubscribedTokenAuthenticationTest.php
@@ -2,6 +2,7 @@
 
 namespace Lexik\Bundle\JWTAuthenticationBundle\Tests\Functional;
 
+use Lexik\Bundle\JWTAuthenticationBundle\Event\JWTCreatedEvent;
 use Lexik\Bundle\JWTAuthenticationBundle\Event\JWTDecodedEvent;
 use Lexik\Bundle\JWTAuthenticationBundle\Event\JWTExpiredEvent;
 use Lexik\Bundle\JWTAuthenticationBundle\Event\JWTInvalidEvent;
@@ -73,6 +74,20 @@ public function testAccessSecuredRouteWithInvalidJWTDecodedEvent()
         self::$subscriber->unsetListener(Events::JWT_DECODED);
     }
 
+    public function testAccessSecuredRouteWithExtraStandardClaim()
+    {
+        self::$subscriber->setListener(Events::JWT_CREATED, function (JWTCreatedEvent $e) {
+            $e->setData(['jti' => 'some-unique-id'] + $e->getData());
+        });
+
+        static::$client = static::createAuthenticatedClient();
+        static::accessSecuredRoute();
+
+        $this->assertSuccessful(static::$client->getResponse());
+
+        self::$subscriber->unsetListener(Events::JWT_CREATED);
+    }
+
     /**
      * @group time-sensitive
      */