diff --git a/src/tests/_support/bootstrap.php b/src/tests/_support/bootstrap.php
index d32b9fa..af66237 100644
--- a/src/tests/_support/bootstrap.php
+++ b/src/tests/_support/bootstrap.php
@@ -26,6 +26,15 @@
 define('PROJECTSUPPORTPATH', realpath(__DIR__) . DIRECTORY_SEPARATOR);
 define('TESTPATH',           realpath(PROJECTSUPPORTPATH . '../') . DIRECTORY_SEPARATOR);
 
+// Let's see if an app/Common.php file exists
+if (file_exists(APPPATH . 'Common.php'))
+{
+	require_once APPPATH . 'Common.php';
+}
+
+// Require system/Common.php
+require_once SYSTEMPATH . 'Common.php';
+
 // Set environment values that would otherwise stop the framework from functioning during tests.
 if (! isset($_SERVER['app.baseURL']))
 {