  function claimPrizes(
    Vault vault,
    uint8 tier,
    address[] calldata winners,
    uint32[][] calldata prizeIndices,
    address _feeRecipient
  ) external returns (uint256 totalFees) {
    uint256 claimCount;
    for (uint i = 0; i < winners.length; i++) {
      claimCount += prizeIndices[i].length;
    }

    uint96 feePerClaim = uint96(
      _computeFeePerClaim(
        _computeMaxFee(tier, prizePool.numberOfTiers()),
        claimCount,
        prizePool.claimCount()
      )
    );

    vault.claimPrizes(tier, winners, prizeIndices, feePerClaim, _feeRecipient);

    return feePerClaim * claimCount;
  }
    uint96 feePerClaim = uint96(
      _computeFeePerClaim(
        _computeMaxFee(tier, prizePool.numberOfTiers()),
        claimCount,
-        prizePool.claimCount()
+        prizePool.claimCount() + prizePool.canaryClaimCount()
      )
    );
