diff --git a/src/Plugin/Field/FieldWidget/AutocompleteDeluxeWidget.php b/src/Plugin/Field/FieldWidget/AutocompleteDeluxeWidget.php
index 7eeefee..bde5490 100644
--- a/src/Plugin/Field/FieldWidget/AutocompleteDeluxeWidget.php
+++ b/src/Plugin/Field/FieldWidget/AutocompleteDeluxeWidget.php
@@ -268,7 +268,7 @@ class AutocompleteDeluxeWidget extends WidgetBase implements ContainerFactoryPlu
 
     $element += [
       '#multiple' => $multiple,
-      '#autocomplete_deluxe_path' => Url::fromRoute('autocomplete_deluxe.autocomplete', $route_parameters, ['absolute' => TRUE])->getInternalPath(),
+      '#autocomplete_deluxe_path' => preg_replace('/^[^\\/]+/', '', Url::fromRoute('autocomplete_deluxe.autocomplete', $route_parameters, ['absolute' => TRUE])->toString()),
       '#default_value' => self::implodeEntities($entities),
     ];