diff --git a/mod/hotpot/report/default.php b/mod/hotpot/report/default.php
index c70a51882a2..a7e4ae27f2c 100644
--- a/mod/hotpot/report/default.php
+++ b/mod/hotpot/report/default.php
@@ -93,7 +93,7 @@ class hotpot_default_report {
             $legend->stat = array();
 
             // put the questions in order
-            sort($table->legend);
+            ksort($table->legend);
 
             foreach($table->legend as $q=>$question) {