diff --git a/ajax.php b/ajax.php
index 0d50087e..f64e080b 100644
--- a/ajax.php
+++ b/ajax.php
@@ -17,9 +17,6 @@ function error($msg) {
 Header("Content-Type: application/json; charset=UTF-8");
 
 $postdata = file_get_contents("php://input");
-if ($postdata) {
-  $postdata = json_decode($postdata, true);
-}
 
 $fun = "ajax_{$_REQUEST['__func']}";
 $return = $fun($_REQUEST, $postdata);
diff --git a/src/options.php b/src/options.php
index 69153560..8999e230 100644
--- a/src/options.php
+++ b/src/options.php
@@ -1,5 +1,7 @@
 <?php
-function ajax_options_save($get_param, $post_param) {
+function ajax_options_save($get_param, $postdata) {
+  $post_param = json_decode($postdata, true);
+
   call_hooks('options_save', $post_param);
 
   $_SESSION['options'] = $post_param;