diff --git a/x/intertx/types/v1/features/msg_register_account.feature b/x/intertx/types/v1/features/msg_register_account.feature
index 68301d131c..d1a472559e 100644
--- a/x/intertx/types/v1/features/msg_register_account.feature
+++ b/x/intertx/types/v1/features/msg_register_account.feature
@@ -50,4 +50,26 @@ Feature: MsgRegisterAccount
     }
     """
     When the message is validated
-    Then expect the error "connection_id cannot be empty: invalid request"
\ No newline at end of file
+    Then expect the error "connection_id cannot be empty: invalid request"
+
+  Scenario: a valid amino msg
+    Given the message
+    """
+    {
+      "owner": "regen16md38uw5z9v4du2dtq4qgake8ewyf36u6qgfza",
+      "connection_id": "channel-5",
+      "version": "3"
+    }
+    """
+    When message sign bytes queried
+    Then expect the sign bytes
+    """
+    {
+      "type": "intertx/MsgRegisterAccount",
+      "value":{
+        "connection_id": "channel-5",
+        "owner": "regen16md38uw5z9v4du2dtq4qgake8ewyf36u6qgfza",
+        "version": "3"
+      }
+    }
+    """
diff --git a/x/intertx/types/v1/msg_register_account_test.go b/x/intertx/types/v1/msg_register_account_test.go
index 4d2d906fab..6e3334d6bb 100644
--- a/x/intertx/types/v1/msg_register_account_test.go
+++ b/x/intertx/types/v1/msg_register_account_test.go
@@ -1,19 +1,22 @@
 package v1
 
 import (
+	"bytes"
 	"encoding/json"
 	"testing"
 
 	"github.com/regen-network/gocuke"
+	"github.com/stretchr/testify/require"
 	"gotest.tools/v3/assert"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
 type registerAccountSuite struct {
-	t   gocuke.TestingT
-	msg *MsgRegisterAccount
-	err error
+	t         gocuke.TestingT
+	msg       *MsgRegisterAccount
+	signBytes string
+	err       error
 }
 
 func TestMsgRegisterAccount(t *testing.T) {
@@ -44,3 +47,13 @@ func (s *registerAccountSuite) ExpectNoError() {
 func (s *registerAccountSuite) ExpectTheError(a string) {
 	assert.ErrorContains(s.t, s.err, a)
 }
+
+func (s *registerAccountSuite) MessageSignBytesQueried() {
+	s.signBytes = string(s.msg.GetSignBytes())
+}
+
+func (s *registerAccountSuite) ExpectTheSignBytes(a gocuke.DocString) {
+	buffer := new(bytes.Buffer)
+	require.NoError(s.t, json.Compact(buffer, []byte(a.Content)))
+	require.Equal(s.t, buffer.String(), s.signBytes)
+}