Solidity delegatecall fails with "function selector was not recognized" when using enum

I have the following function

   enum OptionType {Invalid, Put, Call}

   function create(
    uint256 period,
    uint256 amount,
    uint256 strike,
    OptionType optionType
) {
    ....
}

When I try to delegatecall this function from another contract using this

address(contractAddress).delegatecall(abi.encodeWithSignature("create(uint256,uint256,uint256,uint8)",1,1,1,1));

I get the error

function selector was not recognized and there's no fallback function