diff --git a/src/Methods/Eth/GetBlockTransactionCountByNumber.php b/src/Methods/Eth/GetBlockTransactionCountByNumber.php
index 064ff08..8b53e77 100644
--- a/src/Methods/Eth/GetBlockTransactionCountByNumber.php
+++ b/src/Methods/Eth/GetBlockTransactionCountByNumber.php
@@ -15,6 +15,7 @@ use InvalidArgumentException;
 use Web3\Methods\EthMethod;
 use Web3\Validators\QuantityValidator;
 use Web3\Formatters\OptionalQuantityFormatter;
+use Web3\Formatters\BigNumberFormatter;
 
 class GetBlockTransactionCountByNumber extends EthMethod
 {
@@ -41,7 +42,9 @@ class GetBlockTransactionCountByNumber extends EthMethod
      * 
      * @var array
      */
-    protected $outputFormatters = [];
+    protected $outputFormatters = [
+        BigNumberFormatter::class
+    ];
 
     /**
      * defaultValues
diff --git a/test/unit/EthApiTest.php b/test/unit/EthApiTest.php
index aef886c..15c69cd 100644
--- a/test/unit/EthApiTest.php
+++ b/test/unit/EthApiTest.php
@@ -245,7 +245,7 @@ class EthApiTest extends TestCase
             if ($err !== null) {
                 return $this->assertTrue($err !== null);
             }
-            $this->assertTrue(is_string($transactionCount));
+            $this->assertTrue(is_numeric($transactionCount->toString()));
         });
     }