diff --git a/etc/glance-cache.conf b/etc/glance-cache.conf
index 134f6d7e..7e91aa0a 100644
--- a/etc/glance-cache.conf
+++ b/etc/glance-cache.conf
@@ -22,16 +22,6 @@ image_cache_dir = /var/lib/glance/image-cache/
 # stalled and eligible for reaping
 image_cache_stall_time = 86400
 
-# image_cache_invalid_entry_grace_period - seconds
-#
-# If an exception is raised as we're writing to the cache, the cache-entry is
-# deemed invalid and moved to <image_cache_datadir>/invalid so that it can be
-# inspected for debugging purposes.
-#
-# This is number of seconds to leave these invalid images around before they
-# are elibible to be reaped.
-image_cache_invalid_entry_grace_period = 3600
-
 # Max cache size in bytes
 image_cache_max_size = 10737418240