diff --git a/mod/quiz/renderer.php b/mod/quiz/renderer.php
index e1ef6fa2ea8..151a48cf8a2 100644
--- a/mod/quiz/renderer.php
+++ b/mod/quiz/renderer.php
@@ -614,7 +614,7 @@ class mod_quiz_renderer extends plugin_renderer_base {
                 $row[] = $attemptobj->get_question_mark($slot);
             }
             $table->data[] = $row;
-            $table->rowclasses[] = $attemptobj->get_question_state_class(
+            $table->rowclasses[] = 'quizsummary' . $slot . ' ' . $attemptobj->get_question_state_class(
                     $slot, $displayoptions->correctness);
         }