diff --git a/src/Plugin/Block/SharethisWidgetBlock.php b/src/Plugin/Block/SharethisWidgetBlock.php
index 7830303..3a8ebbf 100644
--- a/src/Plugin/Block/SharethisWidgetBlock.php
+++ b/src/Plugin/Block/SharethisWidgetBlock.php
@@ -145,8 +145,7 @@ class SharethisWidgetBlock extends BlockBase implements ContainerFactoryPluginIn
         $current_path = Url::fromRoute('<current>')->toString();
         $path = ($this->configuration['sharethis_path'] == 'global') ? '<front>' : $current_path;
 
-        global $base_url;
-        $path_obj = Url::fromUri($base_url . '/' . $path,
+        $path_obj = Url::fromUri('internal:/' . $path,
           array(
             'absolute' => TRUE,
           )