diff --git a/webapp/controller/BlockChainController.class.php b/webapp/controller/BlockChainController.class.php
index b6adac82..5801a166 100644
--- a/webapp/controller/BlockChainController.class.php
+++ b/webapp/controller/BlockChainController.class.php
@@ -202,7 +202,7 @@ class BlockChainController extends BaseAuthedController {
                 );
                 myself()->_rspData(array(
                     'trans_id' => $transId,
-                    'params' => $rspObj['params']
+                    'trans_req' => $rspObj['trans_req']
                 ));
             } else {
                 myself()->_rspErr(500,  'server internal error');