diff --git a/contracts/extension/interface/IClaimConditionMultiPhase.sol b/contracts/extension/interface/IClaimConditionMultiPhase.sol
index 3023ea57e..c15f7b49b 100644
--- a/contracts/extension/interface/IClaimConditionMultiPhase.sol
+++ b/contracts/extension/interface/IClaimConditionMultiPhase.sol
@@ -25,10 +25,13 @@ interface IClaimConditionMultiPhase is IClaimCondition {
      *  @param count                    The total number of phases / claim conditions in the list
      *                                  of claim conditions.
      *
+     * @param conditionHash             Mapping from numeric claim condition ID to a unique hash.
+     *                                  Used in supplyClaimedByWallet mapping below.
+     *
      *  @param conditions                   The claim conditions at a given uid. Claim conditions
      *                                  are ordered in an ascending order by their `startTimestamp`.
      *
-     *  @param supplyClaimedByWallet    Map from a claim condition uid and account to supply claimed by account.
+     *  @param supplyClaimedByWallet    Map from a claim condition uid/hash and account to supply claimed by account.
      */
     struct ClaimConditionList {
         uint256 currentStartId;
diff --git a/src/test/sdk/extension/drop/verify-claim/verifyClaim.t.sol b/src/test/sdk/extension/drop/verify-claim/verifyClaim.t.sol
index 9a75cb589..d79c30040 100644
--- a/src/test/sdk/extension/drop/verify-claim/verifyClaim.t.sol
+++ b/src/test/sdk/extension/drop/verify-claim/verifyClaim.t.sol
@@ -31,6 +31,7 @@ contract MyDrop is Drop {
 
     function setCondition(ClaimCondition calldata condition, uint256 _conditionId) public {
         claimCondition.conditions[_conditionId] = condition;
+        claimCondition.conditionHash[_conditionId] = keccak256(abi.encodePacked(_conditionId, block.number));
     }
 
     function setSupplyClaimedByWallet(uint256 _conditionId, address _wallet, uint256 _supplyClaimed) public {
@@ -407,6 +408,7 @@ contract Drop_VerifyClaim is ExtensionUtilTest {
         _currency = address(weth);
         _pricePerToken = 2;
         _quantity = 1;
+
         vm.expectRevert(
             abi.encodeWithSelector(
                 Drop.DropClaimExceedLimit.selector,
diff --git a/src/test/sdk/extension/upgradeable/drop/verify-claim/verifyClaim.t.sol b/src/test/sdk/extension/upgradeable/drop/verify-claim/verifyClaim.t.sol
index 381705795..0cbc92ffc 100644
--- a/src/test/sdk/extension/upgradeable/drop/verify-claim/verifyClaim.t.sol
+++ b/src/test/sdk/extension/upgradeable/drop/verify-claim/verifyClaim.t.sol
@@ -31,6 +31,9 @@ contract MyDropUpg is Drop {
 
     function setCondition(ClaimCondition calldata condition, uint256 _conditionId) public {
         _dropStorage().claimCondition.conditions[_conditionId] = condition;
+        _dropStorage().claimCondition.conditionHash[_conditionId] = keccak256(
+            abi.encodePacked(_conditionId, block.number)
+        );
     }
 
     function setSupplyClaimedByWallet(uint256 _conditionId, address _wallet, uint256 _supplyClaimed) public {