diff --git a/test/t8n/t8n.cpp b/test/t8n/t8n.cpp
index c96dbecf47..80e15d1531 100644
--- a/test/t8n/t8n.cpp
+++ b/test/t8n/t8n.cpp
@@ -145,6 +145,9 @@ int main(int argc, const char* argv[])
                         j_receipt["transactionHash"] = hex0x(computed_tx_hash);
                         j_receipt["gasUsed"] = hex0x(static_cast<uint64_t>(receipt.gas_used));
                         cumulative_gas_used += receipt.gas_used;
+                        receipt.cumulative_gas_used = cumulative_gas_used;
+                        if (rev < EVMC_BYZANTIUM)
+                            receipt.post_state = state::mpt_hash(state.get_accounts());
                         j_receipt["cumulativeGasUsed"] = hex0x(cumulative_gas_used);
 
                         j_receipt["blockHash"] = hex0x(bytes32{});