diff --git a/src/AuthorizationServer.php b/src/AuthorizationServer.php
index ece5458b..46a9b27a 100644
--- a/src/AuthorizationServer.php
+++ b/src/AuthorizationServer.php
@@ -117,7 +117,6 @@ class AuthorizationServer implements EmitterAwareInterface
         $grantType->setClientRepository($this->clientRepository);
         $grantType->setScopeRepository($this->scopeRepository);
         $grantType->setPrivateKey($this->privateKey);
-        $grantType->setPublicKey($this->publicKey);
         $grantType->setEmitter($this->getEmitter());
         $grantType->setEncryptionKey($this->encryptionKey);