diff --git a/core/modules/system/lib/Drupal/system/Plugin/ImageToolkit/GDToolkit.php b/core/modules/system/lib/Drupal/system/Plugin/ImageToolkit/GDToolkit.php
index 96e9e75..810c16d 100644
--- a/core/modules/system/lib/Drupal/system/Plugin/ImageToolkit/GDToolkit.php
+++ b/core/modules/system/lib/Drupal/system/Plugin/ImageToolkit/GDToolkit.php
@@ -278,7 +278,7 @@ public function createTmp(ImageInterface $image, $width, $height) {
   public function requirements() {
     $requirements = array();
 
-    if (function_exists('imagegd2')) {
+    if (static::isAvailable()) {
       $info = gd_info();
       $requirements['rotate_desaturate'] = array(
         'value' => $info['GD Version'],