diff --git a/lib/workers/packets.js b/lib/workers/packets.js
index fd3987c5..16bff2e3 100644
--- a/lib/workers/packets.js
+++ b/lib/workers/packets.js
@@ -373,7 +373,7 @@ CheckResultPacket.prototype.toWriter = function toWriter(bw) {
 
   if (!err) {
     bw.writeU8(0);
-    return;
+    return bw;
   }
 
   bw.writeU8(1);
diff --git a/test/gcs-test.js b/test/gcs-test.js
index b869dc3c..761c7f93 100644
--- a/test/gcs-test.js
+++ b/test/gcs-test.js
@@ -6,7 +6,6 @@
 const assert = require('./util/assert');
 const GCSFilter = require('../lib/utils/gcs');
 const random = require('../lib/crypto/random');
-const Block = require('../lib/primitives/block');
 const Outpoint = require('../lib/primitives/outpoint');
 const Address = require('../lib/primitives/address');
 const common = require('./util/common');