diff --git a/question/bank/previewquestion/preview.php b/question/bank/previewquestion/preview.php
index 4dab1afdc46..7ea555c5eac 100644
--- a/question/bank/previewquestion/preview.php
+++ b/question/bank/previewquestion/preview.php
@@ -267,9 +267,9 @@ $previewdata['techinfo'] .= print_collapsible_region_end(true);
 
 // Output a link to export this single question.
 if (question_has_capability_on($question, 'view')) {
-    if (class_exists('qbank_exporttoxml\\exporttoxml_helper')) {
+    if (class_exists('qbank_exporttoxml\\helper')) {
         if (\core\plugininfo\qbank::is_plugin_enabled('qbank_exporttoxml')) {
-            $exportfunction = '\\qbank_exporttoxml\\exporttoxml_helper::question_get_export_single_question_url';
+            $exportfunction = '\\qbank_exporttoxml\\helper::question_get_export_single_question_url';
             $previewdata['exporttoxml'] = html_writer::link($exportfunction($question),
                     get_string('exportonequestion', 'question'));
         }
diff --git a/question/bank/previewquestion/templates/preview_question.mustache b/question/bank/previewquestion/templates/preview_question.mustache
index 1f2bdf05de0..e3e06d3e532 100644
--- a/question/bank/previewquestion/templates/preview_question.mustache
+++ b/question/bank/previewquestion/templates/preview_question.mustache
@@ -65,7 +65,7 @@
             <input type="button" name="close" value="{{#str}} closepreview, question{{/str}}" class="btn btn-secondary" id="close-previewquestion-page">
         {{/redirect}}
         {{#redirect}}
-            <a href="{{{redirecturl}}}" class="btn btn-secondary">{{#str}} closepreview, question{{/str}}</a>
+            <a href="{{{redirecturl}}}" class="btn btn-secondary" role="button">{{#str}} closepreview, question{{/str}}</a>
         {{/redirect}}
     </div>
 </form>