diff --git a/webui.dev/js/ActionButton.js b/webui.dev/js/ActionButton.js
index 0a6e8ae..d5c9114 100644
--- a/webui.dev/js/ActionButton.js
+++ b/webui.dev/js/ActionButton.js
@@ -71,6 +71,8 @@ class ActionButton extends ExecutionFeedbackButton {
     } else {
       this.unicodeIcon = unescape(json.icon)
     }
+
+    this.domIcon.innerHTML = this.unicodeIcon
   }
 
   onExecStatusChanged () {