diff --git a/tests/template/template_inheritance_test.php b/tests/template/template_inheritance_test.php
index 3a03de6427..b637166ba6 100644
--- a/tests/template/template_inheritance_test.php
+++ b/tests/template/template_inheritance_test.php
@@ -71,6 +71,6 @@ class phpbb_template_template_inheritance_test extends phpbb_template_template_t
 		$this->template_locator = new phpbb_template_locator();
 		$this->template_provider = new phpbb_template_path_provider();
 		$this->template = new phpbb_template($phpbb_root_path, $phpEx, $config, $user, $this->template_locator, $this->template_provider);
-		$this->template->set_custom_template($this->template_path, 'tests', $this->parent_template_path);
+		$this->template->set_custom_template($this->template_path, 'tests', $this->parent_template_path, 'parent');
 	}
 }