diff --git a/usecase/model/icaauth/msg_register_account.go b/usecase/model/icaauth/msg_register_account.go
index 046c3d0b..467840aa 100644
--- a/usecase/model/icaauth/msg_register_account.go
+++ b/usecase/model/icaauth/msg_register_account.go
@@ -15,8 +15,14 @@ type MsgRegisterAccount struct {
 	Version      string `mapstructure:"version" json:"version"`
 }
 
-type RawMsgRegisterAccount struct {
+type RawChainmainMsgRegisterAccount struct {
 	Owner        string `mapstructure:"owner" json:"owner"`
 	ConnectionID string `mapstructure:"connectionId" json:"connectionId"`
 	Version      string `mapstructure:"version" json:"version"`
 }
+
+type RawMsgRegisterAccount struct {
+	Owner        string `mapstructure:"owner" json:"owner"`
+	ConnectionID string `mapstructure:"connection_id" json:"connection_id"`
+	Version      string `mapstructure:"version" json:"version"`
+}
diff --git a/usecase/parser/icaauth/msg.go b/usecase/parser/icaauth/msg.go
index 890bb904..b655b1c1 100644
--- a/usecase/parser/icaauth/msg.go
+++ b/usecase/parser/icaauth/msg.go
@@ -118,15 +118,15 @@ func ParseChainmainMsgSubmitTx(
 func ParseChainmainMsgRegisterAccount(
 	parserParams utils.CosmosParserParams,
 ) ([]command.Command, []string) {
-	var rawMsg icaauth_model.RawMsgRegisterAccount
+	var rawMsg icaauth_model.RawChainmainMsgRegisterAccount
 	if err := mapstructure_utils.DefaultMapstructureDecoder.Decode(parserParams.Msg, &rawMsg); err != nil {
-		panic(fmt.Errorf("error decoding RawMsgRegisterAccount: %v", err))
+		panic(fmt.Errorf("error decoding RawChainmainMsgRegisterAccount: %v", err))
 	}
 
 	var msgRegisterAccount icaauth_model.MsgRegisterAccount
 	msg, err := json.Marshal(rawMsg)
 	if err != nil {
-		panic(fmt.Errorf("error json marshalling RawMsgRegisterAccount: %v", err))
+		panic(fmt.Errorf("error json marshalling RawChainmainMsgRegisterAccount: %v", err))
 	}
 
 	err = json.Unmarshal(msg, &msgRegisterAccount)
@@ -284,10 +284,22 @@ func ParseMsgRegisterAccount(
 		panic(fmt.Errorf("error decoding RawMsgRegisterAccount: %v", err))
 	}
 
+	rawMsgRegisterAccount, err := json.MarshalIndent(icaauth_model.RawChainmainMsgRegisterAccount(rawMsg), "", "  ")
+	if err != nil {
+		panic(fmt.Errorf("error json marshalling RawChainmainMsgRegisterAccount: %v", err))
+	}
+
+	var rawChainmainMsgRegisterAccount icaauth_model.RawChainmainMsgRegisterAccount
+	err = json.Unmarshal(rawMsgRegisterAccount, &rawChainmainMsgRegisterAccount)
+	if err != nil {
+		panic(fmt.Errorf("error json unmarshalling RawChainmainMsgRegisterAccount: %v", err))
+	}
+
 	var msgRegisterAccount icaauth_model.MsgRegisterAccount
-	msg, err := json.Marshal(rawMsg)
+	var msg []byte
+	msg, err = json.Marshal(rawChainmainMsgRegisterAccount)
 	if err != nil {
-		panic(fmt.Errorf("error json marshalling RawMsgRegisterAccount: %v", err))
+		panic(fmt.Errorf("error json marshalling RawChainmainMsgRegisterAccount: %v", err))
 	}
 
 	err = json.Unmarshal(msg, &msgRegisterAccount)
diff --git a/usecase/parser/msg_register_account_test.go b/usecase/parser/msg_register_account_test.go
index 51f904fe..5cf165b7 100644
--- a/usecase/parser/msg_register_account_test.go
+++ b/usecase/parser/msg_register_account_test.go
@@ -28,7 +28,7 @@ var _ = Describe("ParseMsgCommands", func() {
   "msgIndex": 0,
   "params": {
 	"owner": "tcro1np7ztcfeycqwhj0nr8hxfu0lfjz27telqx53ra",
-    "connectionId": "",
+    "connectionId": "connection-18",
 	"version": "",
     "portId": "icacontroller-tcro1np7ztcfeycqwhj0nr8hxfu0lfjz27telqx53ra",
     "channelId": "channel-48",