diff --git a/bcutils.js b/bcutils.js
index c4be283..1d598bc 100644
--- a/bcutils.js
+++ b/bcutils.js
@@ -104,7 +104,7 @@ function extractParamsFromTransId(transId) {
   const params = [];
   for (let i = 0; i < 3; ++i) {
     const param = transId.substr(transIdStr.length - 20 * i , 20);
-    params.push(param);
+    params.push(utils.removeLeadZero(param));
   }
   return params;
 }