diff --git a/cli/wallet.go b/cli/wallet.go
index 7da0c31b5..752a80bfb 100644
--- a/cli/wallet.go
+++ b/cli/wallet.go
@@ -413,6 +413,8 @@ var walletSign = &cli.Command{
 		defer closer()
 		ctx := ReqContext(cctx)
 
+		afmt := NewAppFmt(cctx.App)
+
 		if !cctx.Args().Present() || cctx.NArg() != 2 {
 			return fmt.Errorf("must specify signing address and message to sign")
 		}
@@ -437,7 +439,7 @@ var walletSign = &cli.Command{
 
 		sigBytes := append([]byte{byte(sig.Type)}, sig.Data...)
 
-		fmt.Println(hex.EncodeToString(sigBytes))
+		afmt.Println(hex.EncodeToString(sigBytes))
 		return nil
 	},
 }
diff --git a/cli/wallet_test.go b/cli/wallet_test.go
index 9fb5ac22c..22b3bc3e4 100644
--- a/cli/wallet_test.go
+++ b/cli/wallet_test.go
@@ -201,7 +201,7 @@ func TestWalletExport(t *testing.T) {
 }
 
 func TestWalletSign(t *testing.T) {
-	app, mockApi, _, done := NewMockAppWithFullAPI(t, WithCategory("wallet", walletSign))
+	app, mockApi, buffer, done := NewMockAppWithFullAPI(t, WithCategory("wallet", walletSign))
 	defer done()
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -213,13 +213,19 @@ func TestWalletSign(t *testing.T) {
 	msg, err := hex.DecodeString("01")
 	assert.NoError(t, err)
 
-	signature := crypto.Signature{}
+	signature := crypto.Signature{
+		Type: crypto.SigTypeSecp256k1,
+		Data: []byte{0x01},
+	}
 
 	mockApi.EXPECT().WalletSign(ctx, addr, msg).Return(&signature, nil)
 
+	sigBytes := append([]byte{byte(signature.Type)}, signature.Data...)
+
 	//stm: @CLI_WALLET_SIGN_001
 	err = app.Run([]string{"wallet", "sign", "f01234", "01"})
 	assert.NoError(t, err)
+	assert.Contains(t, buffer.String(), hex.EncodeToString(sigBytes))
 }
 
 func TestWalletVerify(t *testing.T) {