diff --git a/app/lib/dup/indexer.js b/app/lib/dup/indexer.js
index 519c3bd84584b0dc806c5cb43b64d2ec699d418f..4246d5cec67c8429989fa4ce45a4f8af2c43378c 100644
--- a/app/lib/dup/indexer.js
+++ b/app/lib/dup/indexer.js
@@ -291,6 +291,7 @@ const indexer = module.exports = {
 
     const HEAD = {
       version: block.version,
+      currency: block.currency,
       bsize: Block.statics.getLen(block),
       hash: Block.statics.getHash(block),
       issuer: block.issuer,