diff --git a/contracts/chip1155/BEChip1155.sol b/contracts/chip1155/BEChip1155.sol
index d58b776..94e6a50 100644
--- a/contracts/chip1155/BEChip1155.sol
+++ b/contracts/chip1155/BEChip1155.sol
@@ -13,11 +13,6 @@ contract BEChip1155 is ERC1155, AccessControl {
 
     mapping(uint256 => bool) public lockedTokens;
 
-    struct TokenStruct {
-        uint256 tokenId;
-        uint256 amount;
-    }
-
     mapping(address => uint256[]) private _ownedTokens;
     mapping(address => mapping(uint256 => uint256)) private _ownedTokensIndex;
 
@@ -257,7 +252,7 @@ contract BEChip1155 is ERC1155, AccessControl {
         address user,
         uint256 start,
         uint256 page
-    ) external view returns (TokenStruct[] memory) {
+    ) external view returns (uint256[] memory) {
         uint256 size = _ownedTokens[user].length;
         uint256 max = size;
         uint256 pageSize = 0;
@@ -269,14 +264,11 @@ contract BEChip1155 is ERC1155, AccessControl {
             pageSize = size - start;
           }
         }
-        TokenStruct[] memory results = new TokenStruct[](pageSize);
+        uint256[] memory results = new uint256[](pageSize);
         if (pageSize > 0) {
             for (uint256 i = start; i < max; ++i) {
-                TokenStruct memory dataObj;
                 uint256 tokenId = _ownedTokens[user][i];
-                dataObj.tokenId = tokenId;
-                dataObj.amount = balanceOf(user, tokenId);
-                results[i - start] = dataObj;
+                results[i - start] = tokenId;
             }
         }
         return results;