diff --git a/nimbus/p2p/chain.nim b/nimbus/p2p/chain.nim
index 3088ee798..d80e7c674 100644
--- a/nimbus/p2p/chain.nim
+++ b/nimbus/p2p/chain.nim
@@ -43,7 +43,7 @@ method persistBlocks*(c: Chain, headers: openarray[BlockHeader], bodies: openarr
   for i in 0 ..< headers.len:
     let head = c.db.getCanonicalHead()
     let vmState = newBaseVMState(head.stateRoot, headers[i], c.db)
-    let validationResult = processBlock(c.db, head, headers[i], bodies[i], vmState)
+    let validationResult = processBlock(c.db, headers[i], bodies[i], vmState)
 
     when not defined(release):
       if validationResult == ValidationResult.Error:
diff --git a/nimbus/p2p/executor.nim b/nimbus/p2p/executor.nim
index d11b8a272..93f7649d4 100644
--- a/nimbus/p2p/executor.nim
+++ b/nimbus/p2p/executor.nim
@@ -95,7 +95,7 @@ proc makeReceipt(vmState: BaseVMState, cumulativeGasUsed: GasInt, fork = FkFront
   result.logs = vmState.getAndClearLogEntries()
   result.bloom = logsBloom(result.logs).value.toByteArrayBE
 
-proc processBlock*(chainDB: BaseChainDB, head, header: BlockHeader, body: BlockBody, vmState: BaseVMState): ValidationResult =
+proc processBlock*(chainDB: BaseChainDB, header: BlockHeader, body: BlockBody, vmState: BaseVMState): ValidationResult =
   let blockReward = 5.u256 * pow(10.u256, 18) # 5 ETH
 
   if body.transactions.calcTxRoot != header.txRoot:
diff --git a/nimbus/tracer.nim b/nimbus/tracer.nim
index c22ba166d..53961d4d2 100644
--- a/nimbus/tracer.nim
+++ b/nimbus/tracer.nim
@@ -159,7 +159,7 @@ proc dumpBlockState*(db: BaseChainDB, header: BlockHeader, body: BlockBody, dump
   for idx, uncle in body.uncles:
     before.captureAccount(stateBefore, uncle.coinbase, uncleName & $idx)
 
-  discard captureChainDB.processBlock(parent, header, body, vmState)
+  discard captureChainDB.processBlock(header, body, vmState)
 
   var stateAfter = vmState.accountDb
 
diff --git a/premix/debug.nim b/premix/debug.nim
index 610eb3830..fc96ce083 100644
--- a/premix/debug.nim
+++ b/premix/debug.nim
@@ -23,7 +23,7 @@ proc executeBlock(blockEnv: JsonNode, memoryDB: TrieDatabaseRef, blockNumber: Ui
   defer: transaction.dispose()
   let
     vmState = newBaseVMState(parent.stateRoot, header, chainDB)
-    validationResult = processBlock(chainDB, parent, header, body, vmState)
+    validationResult = processBlock(chainDB, header, body, vmState)
 
   if validationResult != ValidationResult.OK:
     error "block validation error", validationResult
diff --git a/premix/dumper.nim b/premix/dumper.nim
index 3a3cfad32..23a672ac5 100644
--- a/premix/dumper.nim
+++ b/premix/dumper.nim
@@ -27,7 +27,7 @@ proc dumpDebug(chainDB: BaseChainDB, blockNumber: Uint256) =
     vmState = newBaseVMState(parent.stateRoot, header, captureChainDB)
 
   captureChainDB.setHead(parent, true)
-  let validationResult = processBlock(captureChainDB, parent, header, body, vmState)
+  let validationResult = processBlock(captureChainDB, header, body, vmState)
 
   transaction.rollback()
   dumpDebuggingMetaData(captureChainDB, header, body, vmState, false)
diff --git a/premix/hunter.nim b/premix/hunter.nim
index 3ae4dd778..a7c9987e4 100644
--- a/premix/hunter.nim
+++ b/premix/hunter.nim
@@ -97,7 +97,7 @@ proc huntProblematicBlock(blockNumber: Uint256): ValidationResult =
   defer: transaction.dispose()
   let
     vmState = newHunterVMState(parentBlock.header.stateRoot, thisBlock.header, chainDB)
-    validationResult = processBlock(chainDB, parentBlock.header, thisBlock.header, thisBlock.body, vmState)
+    validationResult = processBlock(chainDB, thisBlock.header, thisBlock.body, vmState)
 
   if validationResult != ValidationResult.OK:
     transaction.rollback()
diff --git a/premix/regress.nim b/premix/regress.nim
index 578659675..144645a66 100644
--- a/premix/regress.nim
+++ b/premix/regress.nim
@@ -31,7 +31,7 @@ proc validateBlock(chainDB: BaseChainDB, blockNumber: BlockNumber): BlockNumber
 
     let
       vmState = newBaseVMState(parent.stateRoot, headers[i], chainDB)
-      validationResult = processBlock(chainDB, parent, headers[i], bodies[i], vmState)
+      validationResult = processBlock(chainDB, headers[i], bodies[i], vmState)
 
     if validationResult != ValidationResult.OK:
       error "block validation error", validationResult, blockNumber = blockNumber + i.u256