diff --git a/assets/comp/wallet/scripts/JCWallet.ts b/assets/comp/wallet/scripts/JCWallet.ts
index 0a69bb9..741c87d 100644
--- a/assets/comp/wallet/scripts/JCWallet.ts
+++ b/assets/comp/wallet/scripts/JCWallet.ts
@@ -5,7 +5,6 @@ import { ZError } from "./common/ZError";
 import { AllChains } from "./data/allchain";
 import { createWalletEvents, WALLET_CHAIN_CHANGE } from "./common/WalletEvent";
 
-
 export interface IChainData {
   name: string,
   type: string,
@@ -14,10 +13,10 @@ export interface IChainData {
   symbol: string,
   explorerurl: string
 }
-interface Window {
-  JCWallet: JCWallet
+declare namespace jc {
+  export let wallet: JCWallet
 }
-declare let window: Window
+
 @singleton
 export default class JCWallet {
   web3: Web3 = null
@@ -37,7 +36,7 @@ export default class JCWallet {
       this.wallet.add(key);
       this.web3.eth.accounts.wallet.save(this.password);
     }
-    window.JCWallet = this
+    jc.wallet = this
   }
   
   public init({chains}: {chains: number[]}) {