diff --git a/CHANGES b/CHANGES
index 58bb339156..c413cff0db 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,9 @@
+7.2.0-dev.602 | 2025-04-23 15:55:46 +0200
+
+  * cluster/cluster.bif: Fix CountVal casted to PortVal (Arne Welzel, Corelight)
+
+    Thanks UBSAN!
+
 7.2.0-dev.600 | 2025-04-23 15:07:47 +0200
 
   * CI: No more Ubuntu 20.04 [skip ci] (Arne Welzel, Corelight)
diff --git a/VERSION b/VERSION
index 8d4d31a191..8e2ec1cf11 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-7.2.0-dev.600
+7.2.0-dev.602
diff --git a/src/cluster/cluster.bif b/src/cluster/cluster.bif
index 84e86798c9..fc5a341f9e 100644
--- a/src/cluster/cluster.bif
+++ b/src/cluster/cluster.bif
@@ -197,7 +197,7 @@ function Cluster::__listen_websocket%(options: WebSocketServerOptions%): bool
 		static_cast<uint16_t>(options_rec->GetField<zeek::PortVal>("listen_port")->Port()),
 	};
 
-	server_options.max_event_queue_size = options_rec->GetField<zeek::PortVal>("max_event_queue_size")->AsCount();
+	server_options.max_event_queue_size = options_rec->GetField<zeek::CountVal>("max_event_queue_size")->Get();
 	server_options.tls_options = std::move(tls_options);
 
 	auto result = zeek::cluster::manager->ListenWebSocket(server_options);