if (!empty($currencies)) {
$settings->add(new admin_setting_configtext('enrol_fee/cost', get_string('cost', 'enrol_fee'), '', 0, PARAM_FLOAT, 4));
- $settings->add(new admin_setting_configselect('enrol_fee/currency', get_string('currency', 'enrol_fee'), '', '',
+ $settings->add(new admin_setting_configselect('enrol_fee/currency', get_string('currency', 'enrol_fee'), '', 'USD',
$currencies));
}