diff --git a/tools/Evm/T8n/T8nTest.cs b/tools/Evm/T8n/T8nTest.cs
index 90d6e287da0..6d88aae73b4 100644
--- a/tools/Evm/T8n/T8nTest.cs
+++ b/tools/Evm/T8n/T8nTest.cs
@@ -65,7 +65,7 @@ private BlockHeader ConstructBlockHeader()
                 .WithExcessBlobGas((ulong)ParentExcessBlobGas)
                 .WithBlobGasUsed((ulong)ParentBlobGasUsed)
                 .TestObject;
-            header.ExcessBlobGas = BlobGasCalculator.CalculateExcessBlobGas(parentHeader, Spec, header);
+            header.ExcessBlobGas = BlobGasCalculator.CalculateExcessBlobGas(parentHeader, Spec);
         }
         header.BlobGasUsed = BlobGasCalculator.CalculateBlobGas(Transactions);
         header.IsPostMerge = Spec is Paris;