diff --git a/src/ain.ts b/src/ain.ts
index 1928df4..9044401 100644
--- a/src/ain.ts
+++ b/src/ain.ts
@@ -3,6 +3,7 @@ import { getBlockChainEndpoint } from "./constants";
 import { TransactionBody } from "@ainblockchain/ain-util";
 import { txResult } from "./types/type";
 import { Signer } from "@ainblockchain/ain-js/lib/signer/signer";
+import { DefaultSigner } from "@ainblockchain/ain-js/lib/signer/default-signer"
 
 // NOTE(yoojin): Plz suggest a good name.
 export default class AinModule {
@@ -65,6 +66,15 @@ export default class AinModule {
     this.ain!.wallet.removeDefaultAccount();
   }
 
+  removeSigner() {
+    this.checkAinInitiated();
+    const wallet = this.ain!.wallet;
+    const provider = this.ain!.provider;
+    wallet.removeDefaultAccount();
+    this.ain!.setSigner(new DefaultSigner(wallet, provider))
+  }
+
+
   async getBalance() {
     this.isDefaultAccountExist();
     return await this.ain!.wallet.getBalance();
diff --git a/src/ainize.ts b/src/ainize.ts
index 31f4400..7e2950b 100644
--- a/src/ainize.ts
+++ b/src/ainize.ts
@@ -56,7 +56,7 @@ export default class Ainize {
    * Logout from ainize.
    */
   async logout() {
-    this.ain.removeDefaultAccount();
+    this.ain.removeSigner();
     await this.handler.disconnect();
     console.log('logout success!');
   }