diff --git a/premix/assets/js/index.js b/premix/assets/js/index.js
index fdb403862..f6070e41f 100644
--- a/premix/assets/js/index.js
+++ b/premix/assets/js/index.js
@@ -209,7 +209,7 @@ function transactionsRenderer(txId, nimbus, geth) {
     }
   }
 
-  txId = parseInt(txId);
+  let tx  = geth.block.transactions[txId];
   let ntx = nimbus.txTraces[txId];
   let gtx = geth.txTraces[txId];
 
@@ -231,6 +231,7 @@ function transactionsRenderer(txId, nimbus, geth) {
     geth.receipts[txId]
   );
 
+  $(`<h4>Transaction Kind: ${tx.txKind}</h4>`).appendTo(container);
   renderTx(ncr, gcr);
 }
 
diff --git a/premix/index.html b/premix/index.html
index 3ef313b66..9d49037e8 100644
--- a/premix/index.html
+++ b/premix/index.html
@@ -153,6 +153,12 @@
               of other transactions. In opcode section, the same thing happened, perhaps only the first instruction
               with red colored text have the problem, but it will affect the rest of other instructions.
             </p>
+
+            <p>
+              In <span class="uk-text-success">Transactions</span> section, you'll see the transaction kind.
+              It has three kind: <span class="uk-text-warning">Regular, ContractCreation, and ContractCall</span>.
+              Each kind will help you locate the bug in Nimbus implementation, they have their own proc.
+            </p>
           </div>
         </div>
         <!-- Help Page -->
diff --git a/premix/premixcore.nim b/premix/premixcore.nim
index acb3fce07..d28899dde 100644
--- a/premix/premixcore.nim
+++ b/premix/premixcore.nim
@@ -130,21 +130,32 @@ proc updateAccount*(address: string, account: JsonNode, blockNumber: Uint256) =
     account["storage"][x["key"].getStr] = x["value"]
 
 proc requestPostState*(premix, n: JsonNode, blockNumber: Uint256) =
+  type
+    TxKind {.pure.} = enum
+      Regular
+      ContractCreation
+      ContractCall
+
   let txs = n["transactions"]
   if txs.len == 0: return
 
   let tracer = jsonTracer(postStateTracer)
   for t in txs:
+    var txKind = TxKind.Regular
     let tx = parseTransaction(t)
+    if tx.isContractCreation: txKind = TxKind.ContractCreation
     if hasInternalTx(tx, blockNumber):
       let txTrace = requestInternalTx(t["hash"], tracer)
       for address, account in txTrace:
         updateAccount(address, account, blockNumber)
         premix.add account
+      if not tx.isContractCreation: txKind = TxKind.ContractCall
     else:
       premix.requestAccount(blockNumber, tx.getRecipient)
       premix.requestAccount(blockNumber, tx.getSender)
 
+    t["txKind"] = %($txKind)
+
 proc requestPostState*(thisBlock: Block): JsonNode =
   let blockNumber = thisBlock.header.blockNumber
   var premix = newJArray()