diff --git a/dev/TestRunner.php b/dev/TestRunner.php
index e91b7b75b..4de6b9d39 100755
--- a/dev/TestRunner.php
+++ b/dev/TestRunner.php
@@ -365,6 +365,5 @@ class TestRunner extends Controller {
 	
 	public function tearDown() {
 		SapphireTest::kill_temp_db();
-		DB::set_alternative_database_name(null);
 	}
 }