diff --git a/examples/subclass.php b/examples/subclass.php
index 0e906ce..14e6edc 100644
--- a/examples/subclass.php
+++ b/examples/subclass.php
@@ -32,7 +32,7 @@ public function subscribe($topic, $qos) {
 	}
 
 	public function onSubscribe(callable $callable) {
-		$this->subscribeHandler = $callable;
+		$this->subscribeCallback = $callable;
 	}
 
 	public function getSubscriptions() {