diff --git a/lib/wallet/txdb.js b/lib/wallet/txdb.js
index 5d17e702..5ddabce8 100644
--- a/lib/wallet/txdb.js
+++ b/lib/wallet/txdb.js
@@ -3290,7 +3290,6 @@ Details.prototype.toJSON = function toJSON() {
   return {
     wid: this.wid,
     id: this.id,
-    chainHeight: this.chainHeight,
     hash: utils.revHex(this.hash),
     height: this.height,
     block: this.block ? utils.revHex(this.block) : null,