diff --git a/add_form.php b/add_form.php
index d69dfa0..e7bd185 100644
--- a/add_form.php
+++ b/add_form.php
@@ -22,6 +22,8 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
+defined('MOODLE_INTERNAL') || die();
+
 require_once($CFG->libdir.'/formslib.php');
 
 /**
@@ -66,10 +68,10 @@ class mod_attendance_add_form extends moodleform {
                 break;
             case VISIBLEGROUPS:
                 $radio = array();
-                $radio[] = &$mform->createElement('radio', 'sessiontype', '',
-                                                  get_string('commonsession', 'attendance'), mod_attendance_structure::SESSION_COMMON);
-                $radio[] = &$mform->createElement('radio', 'sessiontype', '',
-                                                  get_string('groupsession', 'attendance'), mod_attendance_structure::SESSION_GROUP);
+                $radio[] = &$mform->createElement('radio', 'sessiontype', '', get_string('commonsession', 'attendance'),
+                                                  mod_attendance_structure::SESSION_COMMON);
+                $radio[] = &$mform->createElement('radio', 'sessiontype', '', get_string('groupsession', 'attendance'),
+                                                  mod_attendance_structure::SESSION_GROUP);
                 $mform->addGroup($radio, 'sessiontype', get_string('sessiontype', 'attendance'), ' ', false);
                 $mform->setType('sessiontype', PARAM_INT);
                 $mform->addHelpButton('sessiontype', 'sessiontype', 'attendance');
diff --git a/classes/calendar_helpers.php b/classes/calendar_helpers.php
index dc0e0f2..b6fd53f 100644
--- a/classes/calendar_helpers.php
+++ b/classes/calendar_helpers.php
@@ -21,6 +21,8 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
+defined('MOODLE_INTERNAL') || die();
+
 require_once(dirname(__FILE__).'/../../../calendar/lib.php');
 
 /**
diff --git a/classes/manage_page_params.php b/classes/manage_page_params.php
index fc8c9cd..93ba64d 100644
--- a/classes/manage_page_params.php
+++ b/classes/manage_page_params.php
@@ -22,6 +22,7 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
+defined('MOODLE_INTERNAL') || die();
 /**
  * stores constants/data passed depending on view.
  *
diff --git a/classes/page_with_filter_controls.php b/classes/page_with_filter_controls.php
index cadc9f1..e25d529 100644
--- a/classes/page_with_filter_controls.php
+++ b/classes/page_with_filter_controls.php
@@ -21,6 +21,7 @@
  * @copyright  2016 Dan Marsden http://danmarsden.com
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
+defined('MOODLE_INTERNAL') || die();
 
 /**
  * base filter controls class - overridden by different views where needed.
diff --git a/classes/preferences_page_params.php b/classes/preferences_page_params.php
index a7b8be3..9437b4c 100644
--- a/classes/preferences_page_params.php
+++ b/classes/preferences_page_params.php
@@ -21,6 +21,7 @@
  * @copyright  2016 Dan Marsden http://danmarsden.com
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
+defined('MOODLE_INTERNAL') || die();
 
 /**
  * base preferences page param class
diff --git a/classes/report_page_params.php b/classes/report_page_params.php
index e5b77f9..b40ac43 100644
--- a/classes/report_page_params.php
+++ b/classes/report_page_params.php
@@ -21,6 +21,7 @@
  * @copyright  2016 Dan Marsden http://danmarsden.com
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
+defined('MOODLE_INTERNAL') || die();
 
 /**
  * contains specific data/functions for report_page.
diff --git a/tests/behat/calendar_features.feature b/tests/behat/calendar_features.feature
index 7520793..8dbe24e 100644
--- a/tests/behat/calendar_features.feature
+++ b/tests/behat/calendar_features.feature
@@ -30,9 +30,9 @@ Feature: Test the calendar related features in the attendance module
       | id_sestime_endhour   | 02 |
     And I click on "id_submitbutton" "button"
     And I follow "Course 1"
-    And I follow "Go to calendar"
+    And I follow "Calendar"
     Then I should see "Test attendance"
     And I log out
     And I log in as "student1"
-    And I follow "Go to calendar"
+    And I follow "Calendar"
     Then I should see "Test attendance"
\ No newline at end of file