diff --git a/contracts/src/batch/Multicall3From.sol b/contracts/src/batch/Multicall3From.sol
index 16329ef..dce6b81 100644
--- a/contracts/src/batch/Multicall3From.sol
+++ b/contracts/src/batch/Multicall3From.sol
@@ -163,7 +163,7 @@ contract Multicall3From is IMulticall3From {
         returns (uint256 blockNumber, bytes32 blockHash, Result[] memory returnData)
     {
         blockNumber = block.number;
-        blockHash = blockhash(block.number);
+        blockHash = blockhash(block.number - 1);
         uint256 length = calls.length;
         returnData = new Result[](length);
         for (uint256 i = 0; i < length;) {
diff --git a/contracts/test/batch/Multicall3From.t.sol b/contracts/test/batch/Multicall3From.t.sol
index 59aeaeb..2440ce3 100644
--- a/contracts/test/batch/Multicall3From.t.sol
+++ b/contracts/test/batch/Multicall3From.t.sol
@@ -340,7 +340,7 @@ contract Multicall3FromTest is Test {
             multicall.blockAndAggregate(calls);
 
         assertEq(blockNumber, block.number);
-        assertEq(blockHash, blockhash(block.number));
+        assertEq(blockHash, blockhash(block.number - 1));
         assertEq(results.length, 1);
         assertTrue(results[0].success);
         assertEq(target.value(), 33);
@@ -370,7 +370,7 @@ contract Multicall3FromTest is Test {
             multicall.tryBlockAndAggregate(false, calls);
 
         assertEq(blockNumber, block.number);
-        assertEq(blockHash, blockhash(block.number));
+        assertEq(blockHash, blockhash(block.number - 1));
         assertEq(results.length, 1);
         assertFalse(results[0].success);
     }