diff --git a/edit_element_form.php b/edit_element_form.php
index f2f427f..84d7f2a 100644
--- a/edit_element_form.php
+++ b/edit_element_form.php
@@ -39,7 +39,7 @@ class mod_customcert_edit_element_form extends moodleform {
     /**
      * Form definition.
      */
-    function definition() {
+    public function definition() {
         $mform =& $this->_form;
 
         $element = $this->_customdata['element'];
@@ -60,7 +60,7 @@ class mod_customcert_edit_element_form extends moodleform {
     /**
      * Fill in the current page data for this customcert.
      */
-    function definition_after_data() {
+    public function definition_after_data() {
         $this->element->definition_after_data($this->_form);
     }
 
diff --git a/edit_form.php b/edit_form.php
index 9962ec0..759df38 100644
--- a/edit_form.php
+++ b/edit_form.php
@@ -49,7 +49,7 @@ class mod_customcert_edit_form extends moodleform {
     /**
      * Form definition.
      */
-    function definition() {
+    public function definition() {
         global $DB;
 
         $this->id = $this->_customdata['customcertid'];
@@ -94,7 +94,7 @@ class mod_customcert_edit_form extends moodleform {
     /**
      * Fill in the current page data for this customcert.
      */
-    function definition_after_data() {
+    public function definition_after_data() {
         global $DB;
 
         $mform = $this->_form;
diff --git a/load_template_form.php b/load_template_form.php
index 99948f3..bb109fc 100644
--- a/load_template_form.php
+++ b/load_template_form.php
@@ -30,7 +30,7 @@ class mod_customcert_load_template_form extends moodleform {
     /**
      * Form definition.
      */
-    function definition() {
+    public function definition() {
         $mform =& $this->_form;
 
         $mform->addElement('header', 'loadtemplateheader', get_string('loadtemplate', 'customcert'));
diff --git a/mod_form.php b/mod_form.php
index eb5c383..a12c689 100644
--- a/mod_form.php
+++ b/mod_form.php
@@ -31,7 +31,7 @@ class mod_customcert_mod_form extends moodleform_mod {
     /**
      * Form definition.
      */
-    function definition() {
+    public function definition() {
         global $CFG;
 
         $mform =& $this->_form;
diff --git a/save_template_form.php b/save_template_form.php
index e7d00f2..ca75190 100644
--- a/save_template_form.php
+++ b/save_template_form.php
@@ -30,7 +30,7 @@ class mod_customcert_save_template_form extends moodleform {
     /**
      * Form definition.
      */
-    function definition() {
+    public function definition() {
         $mform =& $this->_form;
 
         $mform->addElement('header', 'savetemplateheader', get_string('savetemplate', 'customcert'));