fix revert reason forwarding

OpenZeppelin · Jan 14, 2020 · f279bec · f279bec
1 parent cf5c2b8
commit f279bec
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/contracts/token/ERC721/ERC721.sol b/contracts/token/ERC721/ERC721.sol
@@ -343,7 +343,7 @@ contract ERC721 is Context, ERC165, IERC721 {
                 // solhint-disable-next-line no-inline-assembly
                 assembly {
                     let returndata_size := mload(returndata)
-                    revert(returndata, add(0x20, returndata_size))
+                    revert(add(32, returndata), returndata_size)
                 }
             } else {
                 revert("ERC721: transfer to non ERC721Receiver implementer");