diff --git a/classes/util.php b/classes/util.php
index bf12faed..32091796 100644
--- a/classes/util.php
+++ b/classes/util.php
@@ -43,9 +43,6 @@ public static function load_uiplugin_js($question, $textareaid) {
                 self::load_ace();
             }
             $PAGE->requires->js_call_amd('qtype_coderunner/userinterfacewrapper', 'newUiWrapper', $params);
-            if ($uiplugin === 'html') {
-                $PAGE->requires->jquery_plugin('ui');  // Possibly needed by Parson's Problems.
-            }
         }
     }