diff --git a/classes/privacy/provider.php b/classes/privacy/provider.php
index 2f772f1d..f521fbb5 100644
--- a/classes/privacy/provider.php
+++ b/classes/privacy/provider.php
@@ -24,8 +24,6 @@
 
 namespace atto_wiris\privacy;
 
-defined('MOODLE_INTERNAL') || die();
-
 /**
  * Privacy Subsystem for MathType Atto plugin implementing null_provider.
  *
diff --git a/db/install.php b/db/install.php
index 0ac41d74..32aeb8d8 100644
--- a/db/install.php
+++ b/db/install.php
@@ -23,8 +23,6 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-defined('MOODLE_INTERNAL') || die();
-
 /**
  * Enable MathType for Atto buttons on installation.
  */
diff --git a/db/uninstall.php b/db/uninstall.php
index e06868c8..b5dc79c5 100644
--- a/db/uninstall.php
+++ b/db/uninstall.php
@@ -23,8 +23,6 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-defined('MOODLE_INTERNAL') || die();
-
 function xmldb_atto_wiris_uninstall() {
     // Remove 'wiris' from the toolbar editor_atto config variable.
     $toolbar = get_config('editor_atto', 'toolbar');
diff --git a/lib.php b/lib.php
index 2bb0120d..035ba605 100644
--- a/lib.php
+++ b/lib.php
@@ -23,8 +23,6 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-defined('MOODLE_INTERNAL') || die();
-
 /**
  * Initialise the js strings required for this module.
  */