diff --git a/lib/Ecomail/ChimpDrill/ChimpDrill.php b/lib/Ecomail/ChimpDrill/ChimpDrill.php
index e34a7c9..d813b84 100644
--- a/lib/Ecomail/ChimpDrill/ChimpDrill.php
+++ b/lib/Ecomail/ChimpDrill/ChimpDrill.php
@@ -86,7 +86,7 @@ protected function parseMessage()
             }
 
             // Write file
-            $file = tempnam(env('APP_TMP_PATH') !== null ? env('APP_TMP_PATH') : storage_path('temp'), 'chimpdrill-');
+            $file = tempnam(env('APP_TMP_PATH', sys_get_temp_dir()), 'chimpdrill-');
 
             file_put_contents($file, '<?php ob_start(); ?>' . $message . '<?php return ob_get_clean(); ?>');
 
@@ -119,7 +119,7 @@ protected function getPlaceholder($name, $default = null)
      * 
      * @return mixed
      */
-    protected function getArrayPlaceholder($name, $default = null, $key)
+    protected function getArrayPlaceholder($name, $default = null, $key = null)
     {
         if(is_int($key)) {
             $key = $key - 1;
@@ -135,7 +135,7 @@ protected function getArrayPlaceholder($name, $default = null, $key)
      * 
      * @return mixed
      */
-    protected function getArrayPlaceholderWithKey($name, $default = null, $index, $key)
+    protected function getArrayPlaceholderWithKey($name, $default = null, $index = null, $key = null)
     {
         if(is_int($index)) {
             $index = $index - 1;