diff --git a/src/Illuminate/Database/Connectors/SqlServerConnector.php b/src/Illuminate/Database/Connectors/SqlServerConnector.php
index 397538281d08..f9c4d0aafffa 100755
--- a/src/Illuminate/Database/Connectors/SqlServerConnector.php
+++ b/src/Illuminate/Database/Connectors/SqlServerConnector.php
@@ -130,6 +130,10 @@ protected function getSqlSrvDsn(array $config)
             $arguments['MultipleActiveResultSets'] = 'false';
         }
 
+        if (isset($config['transaction_isolation'])) {
+            $arguments['TransactionIsolation'] = $config['transaction_isolation'];
+        }
+
         return $this->buildConnectString('sqlsrv', $arguments);
     }