diff --git a/lib/node/http.js b/lib/node/http.js
index 98279d96..dc25f8ff 100644
--- a/lib/node/http.js
+++ b/lib/node/http.js
@@ -655,6 +655,9 @@ class HTTP extends Server {
    */
 
   async scan(socket, start) {
+    if (!socket.filter)
+      return null;
+
     await this.node.scan(start, socket.filter, (entry, txs) => {
       const block = entry.toRaw();
       const raw = [];