diff --git a/lib/http/rpc.js b/lib/http/rpc.js
index 3d3a4c6b..1739672e 100644
--- a/lib/http/rpc.js
+++ b/lib/http/rpc.js
@@ -935,7 +935,7 @@ RPC.prototype.verifyTXOutProof = async function verifyTXOutProof(args, help) {
   const out = [];
 
   for (const hash of tree.matches)
-    out.push(util.revHex(hash));
+    out.push(util.revHex(hash.toString('hex')));
 
   return out;
 };