diff --git a/content_access.admin.inc b/content_access.admin.inc
index 2720515..3f4afbd 100644
--- a/content_access.admin.inc
+++ b/content_access.admin.inc
@@ -326,14 +326,14 @@ function content_access_disable_checkboxes($element) {
     if (!in_array($key, $access_roles) && !($key != DRUPAL_ANONYMOUS_RID && in_array(DRUPAL_AUTHENTICATED_RID, $access_roles))) {
       $element[$key]['#disabled'] = TRUE;
       $element[$key]['#default_value'] = FALSE;
-      $element[$key]['#prefix'] = '<span title="'. t("This role is lacking the permission '@perm', so it has no access.", array('@perm' => t('access content'))) .'">';
+      $element[$key]['#prefix'] = '<span' . drupal_attributes(array('title' => t("This role is lacking the permission '@perm', so it has no access.", array('@perm' => t('access content'))))) . '>';
       $element[$key]['#suffix'] = "</span>";
     }
     else if (in_array($key, $admin_roles) || ($key != DRUPAL_ANONYMOUS_RID && in_array(DRUPAL_AUTHENTICATED_RID, $admin_roles))) {
       // Fix the checkbox to be enabled for users with administer node privileges
       $element[$key]['#disabled'] = TRUE;
       $element[$key]['#default_value'] = TRUE;
-      $element[$key]['#prefix'] = '<span title="'. t("This role has '@perm' permission, so access is granted.", array('@perm' => t('administer nodes'))) .'">';
+      $element[$key]['#prefix'] = '<span' . drupal_attributes(array('title' => t("This role has '@perm' permission, so access is granted.", array('@perm' => t('administer nodes'))))) . '>';
       $element[$key]['#suffix'] = "</span>";
     }
   }
@@ -350,7 +350,7 @@ function content_access_force_permissions($element, &$form_state) {
       $element[$op][$rid]['#disabled'] = TRUE;
       $element[$op][$rid]['#attributes']['disabled'] = 'disabled';
       $element[$op][$rid]['#value'] = TRUE;
-      $element[$op][$rid]['#prefix'] = '<span title="'. t("Permission is granted due to the content type's access control settings.") .'">';
+      $element[$op][$rid]['#prefix'] = '<span' . drupal_attributes(array('title' => t("Permission is granted due to the content type's access control settings."))) . '>';
       $element[$op][$rid]['#suffix'] = "</span>";
     }
   }