diff --git a/tests/all_tests.php b/tests/all_tests.php
index 6bc00670..5fc3f9d0 100644
--- a/tests/all_tests.php
+++ b/tests/all_tests.php
@@ -12,7 +12,7 @@ require_once('lib/simpletest/autorun.php');
 require_once('lib/simpletest/unit_tester.php');
 require_once('lib/simpletest/web_tester.php');
 require_once('lib/simpletest/reporter.php');
-
+require_once('test_install.php');
 
 $options = getopt("d:");
 $db = $options["d"];