diff --git a/config/defaults.ini.php b/config/defaults.ini.php
index f5974b925..36c06da4c 100644
--- a/config/defaults.ini.php
+++ b/config/defaults.ini.php
@@ -416,6 +416,11 @@ throttle_limit_week = 0
 ; Maximum number of posts that a user can send per month with the API. 0 to disable monthly throttling.
 throttle_limit_month = 0
 
+; url (String)
+; The fully-qualified URL of this Friendica node.
+; Used by the worker in a non-HTTP execution environment.
+url =
+
 ; worker_cooldown (Integer)
 ; Cooldown period in seconds after each worker function call.
 worker_cooldown = 0
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 875ec8ab7..e566b5804 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -13,6 +13,8 @@ require_once __DIR__.'/../include/api.php';
 
 new App(dirname(__DIR__));
 
+\Friendica\Core\Config::set('system', 'url', 'http://localhost/');
+
 // Backward compatibility
 if (!class_exists(TestCase::class)) {
 	class_alias(PHPUnit_Framework_TestCase::class, TestCase::class);