diff --git a/src/Controllers/ApiController.php b/src/Controllers/ApiController.php
index 26ad30dd..30891cec 100644
--- a/src/Controllers/ApiController.php
+++ b/src/Controllers/ApiController.php
@@ -100,7 +100,7 @@ function actionIndex()
         }
 
         if (Craft::$app->request->isPost && $query=Craft::$app->request->post('variables')) {
-            $variables = $query;
+            $variables = json_decode($query, true);
         }
         else if (Craft::$app->request->isGet && $query=Craft::$app->request->get('variables')) {
             $variables = json_decode($query, true);