diff --git a/php_image_magician.php b/php_image_magician.php
index a582cbb..6907332 100755
--- a/php_image_magician.php
+++ b/php_image_magician.php
@@ -2425,7 +2425,7 @@ public function saveImage($savePath, $imageQuality="100")
     {
 
         // *** Perform a check or two.
-        if (!is_resource($this->imageResized)) { if ($this->debug) { die('saveImage: This is not a resource.'); }else{ die(); }}
+        if (!is_resource($this->imageResized) || !(is_object($this->imageResized) && $this->imageResized instanceOf \GdImage)) { if ($this->debug) { die('saveImage: This is not GdImage.'); }else{ die(); }}
         $fileInfoArray = pathInfo($savePath);
         clearstatcache();
         if (!is_writable($fileInfoArray['dirname'])) {  if ($this->debug) { die('The path is not writable. Please check your permissions.'); }else{ die(); }}