diff --git a/pages/ajax.render.php b/pages/ajax.render.php
index 30b0886f7..f1b83e522 100644
--- a/pages/ajax.render.php
+++ b/pages/ajax.render.php
@@ -514,7 +514,7 @@ try
 
 		// ui.linkswidget
 		case 'doAddIndirectLinks':
-			$oPage = new JsonPage('');
+			$oPage = new JsonPage();
 			AjaxRenderController::DoAddIndirectLinks($oPage, $sClass, $sFilter);
 			break;
 		////////////////////////////////////////////////////////////
diff --git a/sources/application/WebPage/JsonPage.php b/sources/application/WebPage/JsonPage.php
index 84155ca2d..4b47e7cbd 100644
--- a/sources/application/WebPage/JsonPage.php
+++ b/sources/application/WebPage/JsonPage.php
@@ -8,6 +8,14 @@ class JsonPage extends WebPage
 {
 	protected $aData = [];
 
+	/**
+	 * JsonPage constructor.
+	 */
+	public function __construct()
+	{
+		parent::__construct('');
+	}
+
 	/**
 	 * @return array
 	 */