diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -433,7 +433,7 @@
     'rsrc/js/application/transactions/behavior-show-older-transactions.js' => '600f440c',
     'rsrc/js/application/transactions/behavior-transaction-comment-form.js' => '2bdadf1a',
     'rsrc/js/application/transactions/behavior-transaction-list.js' => '9cec214e',
-    'rsrc/js/application/trigger/TriggerRule.js' => 'e4a816a4',
+    'rsrc/js/application/trigger/TriggerRule.js' => '1c60c3fc',
     'rsrc/js/application/trigger/TriggerRuleControl.js' => '5faf27b9',
     'rsrc/js/application/trigger/TriggerRuleEditor.js' => 'b49fd60c',
     'rsrc/js/application/trigger/TriggerRuleType.js' => '4feea7d3',
@@ -894,7 +894,7 @@
     'syntax-default-css' => '055fc231',
     'syntax-highlighting-css' => '4234f572',
     'tokens-css' => 'ce5a50bd',
-    'trigger-rule' => 'e4a816a4',
+    'trigger-rule' => '1c60c3fc',
     'trigger-rule-control' => '5faf27b9',
     'trigger-rule-editor' => 'b49fd60c',
     'trigger-rule-type' => '4feea7d3',
diff --git a/webroot/rsrc/js/application/trigger/TriggerRule.js b/webroot/rsrc/js/application/trigger/TriggerRule.js
--- a/webroot/rsrc/js/application/trigger/TriggerRule.js
+++ b/webroot/rsrc/js/application/trigger/TriggerRule.js
@@ -84,8 +84,8 @@
 
         control.value = this.getType();
 
-        var on_change = JX.bind(this, this._onTypeChange);
-        JX.DOM.listen(control, 'onchange', null, on_change);
+        var on_change = JX.bind(this, this._onTypeChange, control);
+        JX.DOM.listen(control, 'change', null, on_change);
 
         var attributes = {
           className: 'type-cell'
@@ -97,10 +97,8 @@
       return this._typeCell;
     },
 
-    _onTypeChange: function() {
-      var control = this._getTypeCell();
+    _onTypeChange: function(control) {
       this.setType(control.value);
-
       this._rebuildValueControl();
     },