diff --git a/src/Renderer/LoadTemplatePlugin.php b/src/Renderer/LoadTemplatePlugin.php
index 7729af97a0c19c06e8489f1fce4f027c870b7b56..0a66a2becb5ba4f9a2504f5eaf81ff40fa19df35 100644
--- a/src/Renderer/LoadTemplatePlugin.php
+++ b/src/Renderer/LoadTemplatePlugin.php
@@ -21,7 +21,7 @@ class LoadTemplatePlugin implements Renderer {
 
 	}
 
-	public function render( $template, $params ) {
+	public function render($template, array $params = null) {
 		return $this->plugin->load_template($template, $this->path, $params);
 	}
 }