diff --git a/user/filters/cohort.php b/user/filters/cohort.php
index 401434e4bf63b..8b2f7f336c942 100644
--- a/user/filters/cohort.php
+++ b/user/filters/cohort.php
@@ -37,6 +37,7 @@ function setupForm(&$mform) {
         $objs[] =& $mform->createElement('select', $this->_name.'_op', null, $this->getOperators());
         $objs[] =& $mform->createElement('text', $this->_name, null);
         $grp =& $mform->addElement('group', $this->_name.'_grp', $this->_label, $objs, '', false);
+        $mform->setType($this->_name, PARAM_RAW);
         $mform->disabledIf($this->_name, $this->_name.'_op', 'eq', 5);
         if ($this->_advanced) {
             $mform->setAdvanced($this->_name.'_grp');
diff --git a/user/filters/courserole.php b/user/filters/courserole.php
index 00860790c61cd..09d3d7f0f8a62 100644
--- a/user/filters/courserole.php
+++ b/user/filters/courserole.php
@@ -46,6 +46,7 @@ function setupForm(&$mform) {
         $objs[] =& $mform->createElement('select', $this->_name .'_ct', null, $this->get_course_categories());
         $objs[] =& $mform->createElement('text', $this->_name, null);
         $grp =& $mform->addElement('group', $this->_name.'_grp', $this->_label, $objs, '', false);
+        $mform->setType($this->_name, PARAM_ALPHANUMEXT);
         if ($this->_advanced) {
             $mform->setAdvanced($this->_name.'_grp');
         }
diff --git a/user/filters/profilefield.php b/user/filters/profilefield.php
index 3e5be1f0e18eb..bd22fd7f8ea0f 100644
--- a/user/filters/profilefield.php
+++ b/user/filters/profilefield.php
@@ -62,6 +62,7 @@ function setupForm(&$mform) {
         $objs[] =& $mform->createElement('select', $this->_name.'_op', null, $this->get_operators());
         $objs[] =& $mform->createElement('text', $this->_name, null);
         $grp =& $mform->addElement('group', $this->_name.'_grp', $this->_label, $objs, '', false);
+        $mform->setType($this->_name, PARAM_RAW);
         if ($this->_advanced) {
             $mform->setAdvanced($this->_name.'_grp');
         }
diff --git a/user/filters/text.php b/user/filters/text.php
index b5e9a144d3537..abe00296f3344 100644
--- a/user/filters/text.php
+++ b/user/filters/text.php
@@ -42,6 +42,7 @@ function setupForm(&$mform) {
         $objs[] =& $mform->createElement('select', $this->_name.'_op', null, $this->getOperators());
         $objs[] =& $mform->createElement('text', $this->_name, null);
         $grp =& $mform->addElement('group', $this->_name.'_grp', $this->_label, $objs, '', false);
+        $mform->setType($this->_name, PARAM_RAW);
         $mform->disabledIf($this->_name, $this->_name.'_op', 'eq', 5);
         if ($this->_advanced) {
             $mform->setAdvanced($this->_name.'_grp');