diff --git a/server/web3service/controllers/claim_box.js b/server/web3service/controllers/claim_box.js
index 12ff051..f37c52d 100644
--- a/server/web3service/controllers/claim_box.js
+++ b/server/web3service/controllers/claim_box.js
@@ -9,7 +9,7 @@ const serviceFactory = require('../services/factory');
 
 async function claim(session) {
   try {
-    const account = session.request('account');
+    const account = bcutils.toNormalAddress(session.request('account', ''));
     const netId = session.request('net_id');
     const bc = serviceFactory.create('BlockChain');
     {
@@ -19,6 +19,12 @@ async function claim(session) {
         return;
       }
     }
+    {
+      if (!bcutils.isValidAddress(account)) {
+        session.rspErr(500, 'account error');
+        return;
+      }
+    }
 
     const nftAddress = bc.getNftAddress(bcutils.CLAIM_BOX_TYPE);