diff --git a/php/Blockonomics.php b/php/Blockonomics.php
index be0a8c2a..64090a70 100755
--- a/php/Blockonomics.php
+++ b/php/Blockonomics.php
@@ -38,8 +38,9 @@ public function calculate_total_paid_fiat($transactions) {
         return $rounded_total_paid_fiats;
 
     }
-    
-    
+
+    private $api_key;
+
     public function __construct()
     {
         $this->api_key = $this->get_api_key();
@@ -134,7 +135,7 @@ public function get_callbacks($crypto)
         $response = $this->get($url, $this->api_key);
         return $response;
     }
-    
+
     public function check_get_callbacks_response_code($response){
         $error_str = '';
         //TODO: Check This: WE should actually check code for timeout
diff --git a/php/form_fields.php b/php/form_fields.php
index d04909ff..4a71cfd4 100755
--- a/php/form_fields.php
+++ b/php/form_fields.php
@@ -1,6 +1,7 @@
-
 <?php
 
+defined( 'ABSPATH' ) || exit;
+
 class FormFields {
     public static function init_form_fields($callback_url = '') {
         $blockonomics = new Blockonomics;