diff --git a/lib/task/jobs/jobWorkerTask.class.php b/lib/task/jobs/jobWorkerTask.class.php
index 1ee834f510..2b2d92d2ab 100644
--- a/lib/task/jobs/jobWorkerTask.class.php
+++ b/lib/task/jobs/jobWorkerTask.class.php
@@ -83,7 +83,7 @@ protected function execute($arguments = array(), $options = array())
         $ability = trim($ability);
         if (!class_exists($ability))
         {
-          throw new sfException("Ability not defined: $ability, please ensure the job is in the lib/task/job directory.");
+          throw new sfException("Ability not defined: $ability. Please ensure the job is in the lib/task/job directory or that the plugin is enabled.");
         }
 
         $this->logSection('gearman-worker', "New ability: $ability");