diff --git a/setup.php b/setup.php
index 11112d2..4c400e2 100755
--- a/setup.php
+++ b/setup.php
@@ -59,7 +59,7 @@ function plugin_init_example() {
 	// Display on central page
 	$PLUGIN_HOOKS['central_action']['example'] = 'plugin_central_action_example';
 	// Cron action
-	$plugin_hooks['cron']['example'] = DAY_TIMESTAMP;
+	$PLUGIN_HOOKS['cron']['example'] = DAY_TIMESTAMP;
 }