diff --git a/lib/phpunit/bootstrap.php b/lib/phpunit/bootstrap.php
index dbf97018b26..186b4d68f05 100644
--- a/lib/phpunit/bootstrap.php
+++ b/lib/phpunit/bootstrap.php
@@ -145,6 +145,7 @@ if (isset($CFG->prefix) and $CFG->prefix === $CFG->phpunit_prefix) {
 }
 
 // override CFG settings if necessary and throw away extra CFG settings
+$CFG->wwwroot   = 'http://www.example.com/moodle';
 $CFG->dataroot  = $CFG->phpunit_dataroot;
 $CFG->prefix    = $CFG->phpunit_prefix;
 $CFG->dbtype    = isset($CFG->phpunit_dbtype) ? $CFG->phpunit_dbtype : $CFG->dbtype;