diff --git a/glance/image_cache/drivers/centralized_db.py b/glance/image_cache/drivers/centralized_db.py
index 109ab9b3cc..e0b65050cd 100644
--- a/glance/image_cache/drivers/centralized_db.py
+++ b/glance/image_cache/drivers/centralized_db.py
@@ -42,8 +42,8 @@ CONF = cfg.CONF
 class Driver(base.Driver):
 
     """
-    Cache driver that uses xattr file tags and requires a filesystem
-    that has atimes set.
+    Cache driver that uses centralized database to store cache
+    information.
     """
 
     def __init__(self):