diff --git a/src/ClientRepository.php b/src/ClientRepository.php
index 9f85c0899..31082b4ab 100644
--- a/src/ClientRepository.php
+++ b/src/ClientRepository.php
@@ -174,8 +174,9 @@ public function regenerateSecret(Client $client)
      */
     public function revoked($id)
     {
-        return Client::where('id', $id)
-                ->where('revoked', true)->exists();
+        $client = Client::find($id);
+
+        return is_null($client) || $client->revoked;
     }
 
     /**