--- poormanscron.module.1.18.2.1	Sun Jan 14 12:34:37 2007
+++ poormanscron.module	Mon Aug 11 14:50:11 2008
@@ -46,6 +46,8 @@ function poormanscron_exit() {
     // we don't get a chance to restore them below.
     $saved_messages = drupal_set_message();
 
+    // Ensure that common.inc and all modules are loaded.
+    drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
     // Invoke the cron hooks of all enabled modules.
     if (variable_get('poormanscron_log_progress', 0) == 1) {
       // Invoke the cron hooks of all enabled modules and log the progress.