diff --git a/backend/src/api/blocks.ts b/backend/src/api/blocks.ts
index feb02f1ca..a0a8e8494 100644
--- a/backend/src/api/blocks.ts
+++ b/backend/src/api/blocks.ts
@@ -76,7 +76,7 @@ class Blocks {
         block.coinbaseTx = this.stripCoinbaseTransaction(transactions[0]);
         transactions.sort((a, b) => b.feePerVsize - a.feePerVsize);
         block.medianFee = transactions.length > 1 ? Common.median(transactions.map((tx) => tx.feePerVsize)) : 0;
-        block.feeRange = transactions.length > 1 ? Common.getFeesInRange(transactions, 8, 1) : [0, 0];
+        block.feeRange = transactions.length > 1 ? Common.getFeesInRange(transactions.slice(0, transactions.length - 2), 8) : [0, 0];
 
         this.blocks.push(block);
         if (this.blocks.length > config.KEEP_BLOCK_AMOUNT) {
diff --git a/backend/src/api/common.ts b/backend/src/api/common.ts
index c3e0f1a42..04fd6e2ce 100644
--- a/backend/src/api/common.ts
+++ b/backend/src/api/common.ts
@@ -12,7 +12,7 @@ export class Common {
     return medianNr;
   }
 
-  static getFeesInRange(transactions: TransactionExtended[], rangeLength: number, lastindex = 0) {
+  static getFeesInRange(transactions: TransactionExtended[], rangeLength: number) {
     const arr = [transactions[transactions.length - 1].feePerVsize];
     const chunk = 1 / (rangeLength - 1);
     let itemsToAdd = rangeLength - 2;
@@ -22,7 +22,7 @@ export class Common {
       itemsToAdd--;
     }
 
-    arr.push(transactions[lastindex].feePerVsize);
+    arr.push(transactions[0].feePerVsize);
     return arr;
   }
 
diff --git a/backend/src/api/mempool.ts b/backend/src/api/mempool.ts
index 05d310462..c8febcd5b 100644
--- a/backend/src/api/mempool.ts
+++ b/backend/src/api/mempool.ts
@@ -77,7 +77,7 @@ class Mempool {
       const transaction: Transaction = await bitcoinApi.getRawTransaction(txId);
       return Object.assign({
         vsize: transaction.weight / 4,
-        feePerVsize: transaction.fee / (transaction.weight / 4),
+        feePerVsize: (transaction.fee || 0) / (transaction.weight / 4),
         firstSeen: Math.round((new Date().getTime() / 1000)),
       }, transaction);
     } catch (e) {
diff --git a/frontend/src/app/components/transaction/transaction.component.ts b/frontend/src/app/components/transaction/transaction.component.ts
index d71f87031..259a003c5 100644
--- a/frontend/src/app/components/transaction/transaction.component.ts
+++ b/frontend/src/app/components/transaction/transaction.component.ts
@@ -74,6 +74,9 @@ export class TransactionComponent implements OnInit, OnDestroy {
         return;
       }
       this.tx = tx;
+      if (tx.fee === undefined) {
+        this.tx.fee = 0;
+      }
       this.isLoadingTx = false;
       this.error = undefined;
       this.waitingForTransaction = false;