diff --git a/lib.php b/lib.php
index 46ac3232..dd7f2ea0 100644
--- a/lib.php
+++ b/lib.php
@@ -262,6 +262,13 @@ function questionnaire_get_coursemodule_info($coursemodule) {
 
     $info = new cached_cm_info();
     $info->customdata = (object)[];
+
+    if ($coursemodule->showdescription) {
+        // Convert intro to html. Do not filter cached version, filters run at display time.
+        // Based on the function quiz_get_coursemodule_info() in the quiz module.
+        $info->content = format_module_intro('questionnaire', $questionnaire, $coursemodule->id, false);
+    }
+
     // Populate the custom completion rules as key => value pairs, but only if the completion mode is 'automatic'.
     if ($coursemodule->completion == COMPLETION_TRACKING_AUTOMATIC) {
         $info->customdata->customcompletionrules['completionsubmit'] = $questionnaire->completionsubmit;