diff --git a/extensions/websockets-next/server/deployment/src/test/java/io/quarkus/websockets/next/test/broadcast/BroadcastOnOpenTest.java b/extensions/websockets-next/server/deployment/src/test/java/io/quarkus/websockets/next/test/broadcast/BroadcastOnOpenTest.java
index cebc41a1e7ced..8c4cbf205df7f 100644
--- a/extensions/websockets-next/server/deployment/src/test/java/io/quarkus/websockets/next/test/broadcast/BroadcastOnOpenTest.java
+++ b/extensions/websockets-next/server/deployment/src/test/java/io/quarkus/websockets/next/test/broadcast/BroadcastOnOpenTest.java
@@ -64,22 +64,23 @@ public void assertBroadcast(URI testUri) throws Exception {
                         if (r.succeeded()) {
                             WebSocket ws = r.result();
                             ws.textMessageHandler(msg -> {
-                                messages.add(msg);
+                                messages.add(msg + ":client1");
                                 if (msg.equals("c1")) {
                                     c1MessageLatch.countDown();
                                 } else if (msg.equals("c2")) {
                                     // onOpen callback from the second client
                                     c2MessageLatch.countDown();
                                 }
-
                             });
+                            // Trigger emission for LoMultiProduce
+                            ws.writeTextMessage("foo");
                         } else {
                             throw new IllegalStateException(r.cause());
                         }
                     });
             assertTrue(c1MessageLatch.await(5, TimeUnit.SECONDS));
             assertEquals(1, messages.size());
-            assertEquals("c1", messages.get(0));
+            assertEquals("c1:client1", messages.get(0));
             messages.clear();
             // Now connect the second client
             client2
@@ -88,18 +89,20 @@ public void assertBroadcast(URI testUri) throws Exception {
                         if (r.succeeded()) {
                             WebSocket ws = r.result();
                             ws.textMessageHandler(msg -> {
-                                messages.add(msg);
+                                messages.add(msg + ":client2");
                                 c2MessageLatch.countDown();
                             });
+                            // Trigger emission for LoMultiProduce
+                            ws.writeTextMessage("foo");
                         } else {
                             throw new IllegalStateException(r.cause());
                         }
                     });
             assertTrue(c2MessageLatch.await(5, TimeUnit.SECONDS), "Messages: " + messages);
             // onOpen should be broadcasted to both clients
-            assertEquals(2, messages.size());
-            assertEquals("c2", messages.get(0));
-            assertEquals("c2", messages.get(1));
+            assertEquals(2, messages.size(), "Messages: " + messages);
+            assertEquals("c2", messages.get(0).substring(0, 2));
+            assertEquals("c2", messages.get(1).substring(0, 2));
         } finally {
             client1.close().toCompletionStage().toCompletableFuture().get();
             client2.close().toCompletionStage().toCompletableFuture().get();
diff --git a/extensions/websockets-next/server/deployment/src/test/java/io/quarkus/websockets/next/test/broadcast/LoMultiProduce.java b/extensions/websockets-next/server/deployment/src/test/java/io/quarkus/websockets/next/test/broadcast/LoMultiProduce.java
index 1ee4544554a9f..3a287cb90b2ef 100644
--- a/extensions/websockets-next/server/deployment/src/test/java/io/quarkus/websockets/next/test/broadcast/LoMultiProduce.java
+++ b/extensions/websockets-next/server/deployment/src/test/java/io/quarkus/websockets/next/test/broadcast/LoMultiProduce.java
@@ -2,12 +2,16 @@
 
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.enterprise.inject.Produces;
 import jakarta.inject.Inject;
 
 import io.quarkus.websockets.next.OnOpen;
+import io.quarkus.websockets.next.OnTextMessage;
 import io.quarkus.websockets.next.WebSocket;
 import io.quarkus.websockets.next.WebSocketConnection;
 import io.smallrye.mutiny.Multi;
+import io.smallrye.mutiny.operators.multi.processors.BroadcastProcessor;
 import io.vertx.core.Context;
 
 @WebSocket(path = "/lo-multi-produce/{client}")
@@ -16,10 +20,24 @@ public class LoMultiProduce {
     @Inject
     WebSocketConnection connection;
 
+    @Inject
+    BroadcastProcessor<String> broadcast;
+
     @OnOpen(broadcast = true)
     Multi<String> open() {
         assertTrue(Context.isOnEventLoopThread());
-        return Multi.createFrom().item(connection.pathParam("client").toLowerCase());
+        return broadcast;
+    }
+
+    @OnTextMessage
+    void trigger(String message) {
+        broadcast.onNext(connection.pathParam("client").toLowerCase());
+    }
+
+    @Produces
+    @SessionScoped
+    BroadcastProcessor<String> multiProducer() {
+        return BroadcastProcessor.create();
     }
 
 }