diff --git a/src/VfacTmdb/Tmdb.php b/src/VfacTmdb/Tmdb.php
index 53c4023..2d340d0 100644
--- a/src/VfacTmdb/Tmdb.php
+++ b/src/VfacTmdb/Tmdb.php
@@ -170,7 +170,7 @@ private function decodeRequest($res, $method, $url, $form_params) : \stdClass
     {
         $content = $res->getBody();
 
-        if ( ! is_string($content)) {
+        if ( is_object($content)) {
             $content = $content->getContents();
         }
         if (empty($content)) {