diff --git a/src/js/rulesAssistantOptions.js b/src/js/rulesAssistantOptions.js
index 0cbedb90a0c4eb0d34f0f3b5880d36b0b8732c6d..d6cdfc95f72f9f177bc3b735ff8a332b19de2535 100644
--- a/src/js/rulesAssistantOptions.js
+++ b/src/js/rulesAssistantOptions.js
@@ -988,7 +988,7 @@ window.rulesAssistantOptions = (function() {
 	// buttons for selecting the current rule
 	class RuleSelector extends List {
 		constructor(root) {
-			super("Current rule", V.defaultRules.map(i => [i.name, i]), false);
+			super("Current rule", V.defaultRules.map(i => [(i.name + (!!RuleHasError(i) ? " <span class='yellow'>[!]</span>" : "")), i]), false);
 			this.setValue(current_rule.name);
 			this.onchange = function(rule) {
 				V.currentRule = rule.ID;