1 files changed, 4 insertions, 3 deletions
diff --git a/matrix-specification/Responses/ClientLoginPostResponse.php b/matrix-specification/Responses/ClientLoginPostResponse.php
index 4bb893d..4a0fa7d 100644
--- a/matrix-specification/Responses/ClientLoginPostResponse.php
+++ b/matrix-specification/Responses/ClientLoginPostResponse.php
@@ -3,8 +3,9 @@
 namespace Matrix\Responses;
 
 use Matrix\Data\DiscoveryInformation;
+use Matrix\Response;
 
-class ClientLoginPostResponse implements \JsonSerializable
+class ClientLoginPostResponse extends Response
 {
   public function __construct(
     private string $accessToken,
@@ -16,7 +17,7 @@ class ClientLoginPostResponse implements \JsonSerializable
   )
   {}
 
-  public function jsonSerialize(): array
+  public function getBody(): array
   {
     return array_filter([
       "access_token" => $this->accessToken,
@@ -25,6 +26,6 @@ class ClientLoginPostResponse implements \JsonSerializable
       "refresh_token" => $this->refreshToken,
       "user_id" => $this->userId,
       "well_known" => $this->wellKnown,
-    ], "is_null");
+    ], fn ($value) => ! is_null($value));
   }
 }