diff --git a/precompiles/assets/IAssets.sol b/precompiles/assets/IAssets.sol
index 31a82e329..cd75e86ca 100644
--- a/precompiles/assets/IAssets.sol
+++ b/precompiles/assets/IAssets.sol
@@ -14,10 +14,8 @@ IAssets constant ASSETS_CONTRACT = IAssets(ASSETS_PRECOMPILE_ADDRESS);
 interface IAssets {
 
     /// TRANSACTIONS
-    /// @dev deposit the client chain assets for the staker,
+    /// @dev deposit the client chain assets, only LSTs, for the staker,
     /// that will change the state in assets module
-    /// @dev deposit the client chain assets, mainly LSTs, for the staker,
-    /// that will change the state in deposit module
     /// Note that this address cannot be a module account.
     /// @param clientChainID is the layerZero chainID if it is supported.
     //  It might be allocated by Exocore when the client chain isn't supported
@@ -63,7 +61,7 @@ interface IAssets {
         uint256 opAmount
     ) external returns (bool success, uint256 latestAssetState);
 
-    /// @dev withdraw NST To the staker, that will change the state in withdraw module
+    /// @dev withdraw NST To the staker, that will change the state in assets module
     /// Note that this address cannot be a module account.
     /// @param clientChainID is the layerZero chainID if it is supported.
     //  It might be allocated by Exocore when the client chain isn't supported
diff --git a/x/assets/keeper/client_chain_asset.go b/x/assets/keeper/client_chain_asset.go
index ef7b99f43..06a861cbb 100644
--- a/x/assets/keeper/client_chain_asset.go
+++ b/x/assets/keeper/client_chain_asset.go
@@ -48,7 +48,7 @@ func (k Keeper) SetStakingAssetInfo(ctx sdk.Context, info *assetstype.StakingAss
 	store := prefix.NewStore(ctx.KVStore(k.storeKey), assetstype.KeyPrefixReStakingAssetInfo)
 	_, assetID := assetstype.GetStakerIDAndAssetIDFromStr(info.AssetBasicInfo.LayerZeroChainID, "", info.AssetBasicInfo.Address)
 	if store.Has([]byte(assetID)) {
-		return assetstype.ErrInvalidInputParameter.Wrapf(
+		return assetstype.ErrRegisterDuplicateAssetID.Wrapf(
 			"the asset has already been registered,assetID:%v,LayerZeroChainID:%v,ClientChainAssetAddr:%v",
 			assetID, info.AssetBasicInfo.LayerZeroChainID, info.AssetBasicInfo.Address,
 		)
diff --git a/x/assets/types/errors.go b/x/assets/types/errors.go
index 38bf37ebb..8cfc47fe0 100644
--- a/x/assets/types/errors.go
+++ b/x/assets/types/errors.go
@@ -89,8 +89,12 @@ var (
 		ModuleName, 18,
 		"the operation type is invalid")
 
-	ErrParseJoinedKey = errorsmod.Register(
+	ErrRegisterDuplicateAssetID = errorsmod.Register(
 		ModuleName, 19,
+		"register new asset with an existing assetID")
+
+	ErrParseJoinedKey = errorsmod.Register(
+		ModuleName, 20,
 		"the joined key can't be parsed",
 	)
 )