diff --git a/README.rst b/README.rst
index 02d0279..e5151f0 100644
--- a/README.rst
+++ b/README.rst
@@ -33,6 +33,8 @@
         vif_plugging_timeout: 300
         vif_plugging_is_fatal: false
         instance_build_timeout: 600
+        concurrency:
+          lock_path: '/var/lib/nova/tmp'
         consoleauth:
           token_ttl: 600
         bind:
@@ -304,6 +306,8 @@
         my_ip: 10.1.0.16
         vif_plugging_timeout: 300
         vif_plugging_is_fatal: false
+        concurrency:
+          lock_path: '/var/lib/nova/tmp'
         bind:
           vnc_address: 172.20.0.100
           vnc_port: 6080