diff --git a/elements/puppet-stack-config/puppet-stack-config.pp b/elements/puppet-stack-config/puppet-stack-config.pp
index dbe1aec7b..f9547803d 100644
--- a/elements/puppet-stack-config/puppet-stack-config.pp
+++ b/elements/puppet-stack-config/puppet-stack-config.pp
@@ -156,7 +156,7 @@ if str2bool(hiera('enable_telemetry', true)) {
   include ::ceilometer::keystone::auth
   include ::aodh::keystone::auth
   include ::ceilometer
-  if str2bool(hiera('enable_legacy_ceilometer_api', false)) {
+  if str2bool(hiera('enable_legacy_ceilometer_api', true)) {
     include ::ceilometer::api
   }
   include ::ceilometer::wsgi::apache
diff --git a/instack_undercloud/undercloud.py b/instack_undercloud/undercloud.py
index 09a746e24..c719893c7 100644
--- a/instack_undercloud/undercloud.py
+++ b/instack_undercloud/undercloud.py
@@ -306,9 +306,12 @@ _opts = [
                 help=('Whether to install the Volume service to be boot '
                       'overcloud nodes from remote volumes.')),
     cfg.BoolOpt('enable_legacy_ceilometer_api',
-                default=False,
+                default=True,
                 help=('Whether to enable legacy ceilometer api '
-                      'in the Undercloud.')
+                      'in the Undercloud. '
+                      'Note: Ceilometer API has been deprecated and will be '
+                      'removed in future release. Please consider moving to '
+                      'gnocchi/Aodh/Panko API instead.')
                 ),
     cfg.BoolOpt('ipxe_enabled',
                 default=True,
diff --git a/undercloud.conf.sample b/undercloud.conf.sample
index b9f4ab6e2..5cf06ae09 100644
--- a/undercloud.conf.sample
+++ b/undercloud.conf.sample
@@ -163,7 +163,7 @@
 
 # Whether to enable legacy ceilometer api service in the
 # Undercloud. (boolean value)
-#enable_legacy_ceilometer_api = false
+#enable_legacy_ceilometer_api = true
 
 # Whether to use iPXE for deploy and inspection. (boolean value)
 # Deprecated group/name - [DEFAULT]/ipxe_deploy