diff --git a/blocks/quiz_results/config_instance.html b/blocks/quiz_results/config_instance.html
index 95aedb71468..14d8f876384 100644
--- a/blocks/quiz_results/config_instance.html
+++ b/blocks/quiz_results/config_instance.html
@@ -8,7 +8,7 @@
         <?php
             $quizzes = get_records('quiz', 'course', $this->instance->pageid, '', 'id, name');
             if(empty($quizzes)) {
-                print_string('config_no_quizzes_in_course', 'block_quiz_results');
+                echo '<strong>'.get_string('config_no_quizzes_in_course', 'block_quiz_results').'</strong>';
                 echo '<p><input type="hidden" name="quizid" value="0" /></p>';
             }
             else {