diff --git a/src/scheduler/etc/sched.conf b/src/scheduler/etc/sched.conf
index a3501ffa5e..6d0d5e378c 100644
--- a/src/scheduler/etc/sched.conf
+++ b/src/scheduler/etc/sched.conf
@@ -96,7 +96,10 @@
 #
 #  MAX_BACKUPS_HOST: Maximum number of active backup operations per host.
 #
-#  ORCHESTRATOR_URL: External scheduler, which manages deployment of VMs to hosts
+#  EXTERNAL_SCHEDULER: Configuration to contact an external scheduler module:
+#    - SERVER: the http URL to perform the POST operation
+#    - PROXY: if needed to contact the external scheduler
+#    - TIMEOUT: how long to wait for a response
 #
 #*******************************************************************************