diff --git a/org.jgrapes.webconsole.base/src/org/jgrapes/webconsole/base/events/DisplayNotification.java b/org.jgrapes.webconsole.base/src/org/jgrapes/webconsole/base/events/DisplayNotification.java
index 5139cf41..7459a54c 100644
--- a/org.jgrapes.webconsole.base/src/org/jgrapes/webconsole/base/events/DisplayNotification.java
+++ b/org.jgrapes.webconsole.base/src/org/jgrapes/webconsole/base/events/DisplayNotification.java
@@ -93,8 +93,8 @@ public Map<String, Object> options() {
 
     @Override
     public void emitJson(Writer writer) throws IOException {
-        options.put("destroyOnClose", true);
-        emitJson(writer, "displayNotification", content(), options);
+        var extOpts = new HashMap<>(options);
+        extOpts.put("destroyOnClose", true);
+        emitJson(writer, "displayNotification", content(), extOpts);
     }
-
 }