diff --git a/mod/lesson/locallib.php b/mod/lesson/locallib.php
index 6eba8fcd9fe..1444fcee774 100644
--- a/mod/lesson/locallib.php
+++ b/mod/lesson/locallib.php
@@ -722,6 +722,7 @@ abstract class lesson_add_page_form_base extends moodleform {
 
         if ($this->_customdata['edit'] === true) {
             $mform->addElement('hidden', 'edit', 1);
+            $mform->setType('edit', PARAM_BOOL);
             $this->add_action_buttons(get_string('cancel'), get_string('savepage', 'lesson'));
         } else if ($this->qtype === 'questiontype') {
             $this->add_action_buttons(get_string('cancel'), get_string('addaquestionpage', 'lesson'));
@@ -761,10 +762,14 @@ abstract class lesson_add_page_form_base extends moodleform {
         if ($label === null) {
             $label = get_string("score", "lesson");
         }
+        $elname = $name;
         if (is_int($name)) {
             $name = "score[$name]";
+            $elname = 'score';
         }
         $this->_form->addElement('text', $name, $label, array('size'=>5));
+        // Temporary fix until MDL-38885 gets integrated.
+        $this->_form->setType($elname, PARAM_INT);
         if ($value !== null) {
             $this->_form->setDefault($name, $value);
         }
diff --git a/mod/lesson/pagetypes/matching.php b/mod/lesson/pagetypes/matching.php
index b110d1de1e5..5592e4e4e21 100644
--- a/mod/lesson/pagetypes/matching.php
+++ b/mod/lesson/pagetypes/matching.php
@@ -477,6 +477,8 @@ class lesson_add_page_form_matching extends lesson_add_page_form_base {
             $label = get_string('matchesanswer','lesson');
             $count = $i;
             $this->_form->addElement('text', 'response_editor['.$count.']', $label, array('size'=>'50'));
+            // Temporary fix until MDL-38885 gets integrated.
+            $this->_form->setType('response_editor', PARAM_TEXT);
             $this->_form->setDefault('response_editor['.$count.']', '');
             if ($required) {
                 $this->_form->addRule('response_editor['.$count.']', get_string('required'), 'required', null, 'client');
@@ -525,7 +527,8 @@ class lesson_display_answer_form_matching extends moodleform {
                 if ($hasattempt) {
                     $responseid = 'response_'.$answer->id;
                     $mform->addElement('hidden', 'response['.$answer->id.']', htmlspecialchars(trim($answers[$useranswers[$i]]->response)));
-                    $mform->setType('response['.$answer->id.']', PARAM_TEXT);
+                    // Temporary fixed until MDL-38885 gets integrated
+                    $mform->setType('response', PARAM_TEXT);
                 }
                 $mform->addElement('select', $responseid, format_text($answer->answer,$answer->answerformat,$options), $responseoptions, $disabled);
                 $mform->setType($responseid, PARAM_TEXT);
diff --git a/mod/lesson/pagetypes/multichoice.php b/mod/lesson/pagetypes/multichoice.php
index 8b914dd4e72..9025f921f44 100644
--- a/mod/lesson/pagetypes/multichoice.php
+++ b/mod/lesson/pagetypes/multichoice.php
@@ -553,7 +553,8 @@ class lesson_display_answer_form_multichoice_multianswer extends moodleform {
             if ($hasattempt && in_array($answer->id, $useranswers)) {
                 $answerid = 'answer_'.$answer->id;
                 $mform->addElement('hidden', 'answer['.$answer->id.']', $answer->answer);
-                $mform->setType('answer['.$answer->id.']', PARAM_TEXT);
+                // Temporary fix until MDL-38885 gets integrated.
+                $mform->setType('answer', PARAM_TEXT);
                 $mform->setDefault($answerid, true);
                 $mform->setDefault('answer['.$answer->id.']', true);
             }