diff --git a/data/wallet.ts b/data/wallet.ts
index 0f4000b..8afc73b 100644
--- a/data/wallet.ts
+++ b/data/wallet.ts
@@ -19,12 +19,13 @@ export function useWallet() {
     if (existingWallets.length === 0) {
       const newWallet = AElf.wallet.createNewWallet();
       await db.wallet.add({ privateKey: newWallet.privateKey });
-      const res = await (
+      await(
         await fetch(
           `https://faucet.aelf.dev/api/claim?walletAddress=${newWallet.address}`,
           { method: "POST" }
         )
       ).json();
+      return newWallet.privateKey as string;
     } else {
       return existingWallets[0].privateKey;
     }