diff --git a/etc/keystone.conf.sample b/etc/keystone.conf.sample
index 036c8dd75f..14a0ef0130 100644
--- a/etc/keystone.conf.sample
+++ b/etc/keystone.conf.sample
@@ -520,7 +520,7 @@
 #expiration_time=600
 
 # Dogpile.cache backend module. It is recommended that
-# Memcache (dogpile.cache.memcache) or Redis
+# Memcache (dogpile.cache.memcached) or Redis
 # (dogpile.cache.redis) be used in production deployments.
 # Small workloads (single process) like devstack can use the
 # dogpile.cache.memory backend. (string value)
diff --git a/keystone/common/config.py b/keystone/common/config.py
index ec0f27a1d3..830bf7e7e7 100644
--- a/keystone/common/config.py
+++ b/keystone/common/config.py
@@ -258,7 +258,7 @@ FILE_OPTIONS = {
         # backend.
         cfg.StrOpt('backend', default='keystone.common.cache.noop',
                    help='Dogpile.cache backend module. It is recommended '
-                        'that Memcache (dogpile.cache.memcache) or Redis '
+                        'that Memcache (dogpile.cache.memcached) or Redis '
                         '(dogpile.cache.redis) be used in production '
                         'deployments.  Small workloads (single process) '
                         'like devstack can use the dogpile.cache.memory '