diff --git a/src/Eth.php b/src/Eth.php
index 9e70c84..9401f33 100644
--- a/src/Eth.php
+++ b/src/Eth.php
@@ -199,6 +199,17 @@ class Eth
                 ]
             ]
         ],
+        'eth_getTransactionByBlockNumberAndIndex' => [
+            'params' => [
+                [
+                    'validators' => [
+                        QuantityValidator::class, TagValidator::class
+                    ]
+                ], [
+                    'validators' => QuantityValidator::class
+                ]
+            ]
+        ],
     ];
 
     /**
diff --git a/test/unit/EthTest.php b/test/unit/EthTest.php
index 8876652..096e51c 100644
--- a/test/unit/EthTest.php
+++ b/test/unit/EthTest.php
@@ -633,6 +633,31 @@ class EthTest extends TestCase
         });
     }
 
+    /**
+     * testGetTransactionByBlockNumberAndIndex
+     * 
+     * @return void
+     */    
+    public function testGetTransactionByBlockNumberAndIndex()
+    {
+        $eth = $this->eth;
+
+        $eth->getTransactionByBlockNumberAndIndex('0xe8', '0x0', function ($err, $transaction) {
+            if ($err !== null) {
+                return $this->fail($err->getMessage());
+            }
+            if (isset($transaction->result)) {
+                $this->assertTrue(is_string($transaction->result));
+            } else {
+                if (isset($transaction->error)) {
+                    $this->fail($transaction->error->message);
+                } else {
+                    $this->assertTrue(true);
+                }
+            }
+        });
+    }
+
     /**
      * testUnallowedMethod
      *