diff --git a/packages/protocol/contracts/L1/TaikoData.sol b/packages/protocol/contracts/L1/TaikoData.sol
index 0d02d7de90d..ce6dd7a3c2d 100644
--- a/packages/protocol/contracts/L1/TaikoData.sol
+++ b/packages/protocol/contracts/L1/TaikoData.sol
@@ -41,11 +41,10 @@ library TaikoData {
         uint64 numEthDeposits;
     }
 
-    // 3 slots
+    // 2 slots
     struct BlockMetadataInput {
         bytes32 txListHash;
         address beneficiary;
-        uint32 gasLimit;
         uint24 txListByteStart; // byte-wise start index (inclusive)
         uint24 txListByteEnd; // byte-wise end index (exclusive)
         uint8 cacheTxListInfo; // non-zero = True
diff --git a/packages/protocol/contracts/L1/libs/LibProposing.sol b/packages/protocol/contracts/L1/libs/LibProposing.sol
index 349553d9d3c..e179ca516ab 100644
--- a/packages/protocol/contracts/L1/libs/LibProposing.sol
+++ b/packages/protocol/contracts/L1/libs/LibProposing.sol
@@ -119,11 +119,7 @@ library LibProposing {
         view
         returns (uint8 cacheTxListInfo)
     {
-        if (
-            input.beneficiary == address(0)
-            //
-            || input.gasLimit == 0
-        ) revert L1_INVALID_METADATA();
+        if (input.beneficiary == address(0)) revert L1_INVALID_METADATA();
 
         if (
             state.numBlocks