diff --git a/etc/nova/nova.conf.sample b/etc/nova/nova.conf.sample
index cf13eb85f54b..1f85e957e949 100644
--- a/etc/nova/nova.conf.sample
+++ b/etc/nova/nova.conf.sample
@@ -662,7 +662,7 @@
 ####          detected.Valid options are 'noop', 'log' and 'reap'. Set to
 ####          'noop' to disable.
 
-# image_cache_manager_interval=40
+# image_cache_manager_interval=0
 #### (IntOpt) Number of periodic scheduler ticks to wait between runs of
 ####          the image cache manager.
 
diff --git a/nova/compute/manager.py b/nova/compute/manager.py
index 3759bb45e03c..d6faa8b6b4c7 100644
--- a/nova/compute/manager.py
+++ b/nova/compute/manager.py
@@ -128,7 +128,7 @@ compute_opts = [
                     "Valid options are 'noop', 'log' and 'reap'. "
                     "Set to 'noop' to disable."),
     cfg.IntOpt("image_cache_manager_interval",
-               default=40,
+               default=0,
                help="Number of periodic scheduler ticks to wait between "
                     "runs of the image cache manager."),
     cfg.IntOpt("heal_instance_info_cache_interval",