diff --git a/core/modules/system/src/Plugin/Block/SystemPoweredByBlock.php b/core/modules/system/src/Plugin/Block/SystemPoweredByBlock.php
index 980d5b3059b2006fca37b027da5d98c0c13ba4f2..2e197e02c0887807e1aafc7dac727cdd3b25a93a 100644
--- a/core/modules/system/src/Plugin/Block/SystemPoweredByBlock.php
+++ b/core/modules/system/src/Plugin/Block/SystemPoweredByBlock.php
@@ -25,7 +25,7 @@ class SystemPoweredByBlock extends BlockBase {
    * {@inheritdoc}
    */
   public function build() {
-    return array('#markup' => '<span>' . t('Powered by <a href="@poweredby">Drupal</a>', array('@poweredby' => 'https://drupal.org')) . '</span>');
+    return array('#markup' => '<span>' . t('Powered by <a href="@poweredby">Drupal</a>', array('@poweredby' => 'https://www.drupal.org')) . '</span>');
   }
 
   /**