diff --git a/mod/data/field/textarea/field.class.php b/mod/data/field/textarea/field.class.php
index 3901b6d431f..9d22247a4f7 100755
--- a/mod/data/field/textarea/field.class.php
+++ b/mod/data/field/textarea/field.class.php
@@ -84,6 +84,7 @@ class data_field_textarea extends data_field_base {
     
     function gen_textarea($usehtmleditor, $text='') {
         // MDL-16018: Don't print htmlarea with < 7 lines height, causes visualization problem
+        $text = clean_text($text);
         $this->field->param3 = $usehtmleditor && $this->field->param3 < 7 ? 7 : $this->field->param3;
         return print_textarea($usehtmleditor, $this->field->param3, $this->field->param2,
                               '', '', 'field_'.$this->field->id, $text, '', true, 'field_' . $this->field->id);