diff --git a/tests/mocks/database/db/querybuilder.php b/tests/mocks/database/db/querybuilder.php
new file mode 100644
index 0000000..1b95c92
--- /dev/null
+++ b/tests/mocks/database/db/querybuilder.php
@@ -0,0 +1,10 @@
+<?php
+
+if ( ! class_exists('CI_DB_query_builder'))
+{
+	class Mock_Database_DB_QueryBuilder extends CI_DB_active_record {}
+}
+else
+{
+	class Mock_Database_DB_QueryBuilder extends CI_DB_query_builder {}
+}