diff --git a/lib/ceilometer b/lib/ceilometer
index 3df75b7300..d1cc862160 100644
--- a/lib/ceilometer
+++ b/lib/ceilometer
@@ -102,9 +102,6 @@ CEILOMETER_EVENTS=${CEILOMETER_EVENTS:-True}
 CEILOMETER_COORDINATION_URL=${CEILOMETER_COORDINATION_URL:-}
 CEILOMETER_PIPELINE_INTERVAL=${CEILOMETER_PIPELINE_INTERVAL:-}
 
-# Tell Tempest this project is present
-TEMPEST_SERVICES+=,ceilometer
-
 
 # Functions
 # ---------
diff --git a/lib/cinder b/lib/cinder
index e5ed2db1a3..26277ccaba 100644
--- a/lib/cinder
+++ b/lib/cinder
@@ -108,9 +108,6 @@ CINDER_PERIODIC_INTERVAL=${CINDER_PERIODIC_INTERVAL:-60}
 
 CINDER_ISCSI_HELPER=${CINDER_ISCSI_HELPER:-tgtadm}
 
-# Tell Tempest this project is present
-TEMPEST_SERVICES+=,cinder
-
 
 # Source the enabled backends
 if is_service_enabled c-vol && [[ -n "$CINDER_ENABLED_BACKENDS" ]]; then
diff --git a/lib/glance b/lib/glance
index b1b0f32f62..7be3a8495c 100644
--- a/lib/glance
+++ b/lib/glance
@@ -75,9 +75,6 @@ GLANCE_SEARCH_PORT=${GLANCE_SEARCH_PORT:-9393}
 GLANCE_SEARCH_PORT_INT=${GLANCE_SEARCH_PORT_INT:-19393}
 GLANCE_SEARCH_HOSTPORT=${GLANCE_SEARCH_HOSTPORT:-$GLANCE_SERVICE_HOST:$GLANCE_SEARCH_PORT}
 
-# Tell Tempest this project is present
-TEMPEST_SERVICES+=,glance
-
 # Functions
 # ---------
 
diff --git a/lib/heat b/lib/heat
index cedddd2d26..3489578162 100644
--- a/lib/heat
+++ b/lib/heat
@@ -64,10 +64,6 @@ else
     HEAT_DEFERRED_AUTH=${HEAT_DEFERRED_AUTH:-trusts}
 fi
 
-# Tell Tempest this project is present
-TEMPEST_SERVICES+=,heat
-
-
 # Functions
 # ---------
 
diff --git a/lib/horizon b/lib/horizon
index 9fe0aa8b49..b2539d1b7d 100644
--- a/lib/horizon
+++ b/lib/horizon
@@ -35,10 +35,6 @@ HORIZON_DIR=$DEST/horizon
 # The example file in Horizon repo is used by default.
 HORIZON_SETTINGS=${HORIZON_SETTINGS:-$HORIZON_DIR/openstack_dashboard/local/local_settings.py.example}
 
-# Tell Tempest this project is present
-TEMPEST_SERVICES+=,horizon
-
-
 # Functions
 # ---------
 
diff --git a/lib/ironic b/lib/ironic
index b3ad586923..cc1dfe31d9 100644
--- a/lib/ironic
+++ b/lib/ironic
@@ -114,9 +114,6 @@ IRONIC_SERVICE_PROTOCOL=http
 IRONIC_SERVICE_PORT=${IRONIC_SERVICE_PORT:-6385}
 IRONIC_HOSTPORT=${IRONIC_HOSTPORT:-$SERVICE_HOST:$IRONIC_SERVICE_PORT}
 
-# Tell Tempest this project is present
-TEMPEST_SERVICES+=,ironic
-
 # Enable iPXE
 IRONIC_IPXE_ENABLED=$(trueorfalse False IRONIC_IPXE_ENABLED)
 IRONIC_HTTP_DIR=${IRONIC_HTTP_DIR:-$IRONIC_DATA_DIR/httpboot}
diff --git a/lib/neutron-legacy b/lib/neutron-legacy
index da8c06446c..9fb668ef81 100644
--- a/lib/neutron-legacy
+++ b/lib/neutron-legacy
@@ -358,10 +358,6 @@ else
     Q_USE_SECGROUP=False
 fi
 
-# Tell Tempest this project is present
-TEMPEST_SERVICES+=,neutron
-
-
 # Save trace setting
 XTRACE=$(set +o | grep xtrace)
 set +o xtrace
diff --git a/lib/nova b/lib/nova
index 6441a891eb..d4be019ae3 100644
--- a/lib/nova
+++ b/lib/nova
@@ -167,10 +167,6 @@ NOVA_ALLOW_MOVE_TO_SAME_HOST=$(trueorfalse True NOVA_ALLOW_MOVE_TO_SAME_HOST)
 TEST_FLOATING_POOL=${TEST_FLOATING_POOL:-test}
 TEST_FLOATING_RANGE=${TEST_FLOATING_RANGE:-192.168.253.0/29}
 
-# Tell Tempest this project is present
-TEMPEST_SERVICES+=,nova
-
-
 # Functions
 # ---------
 
diff --git a/lib/swift b/lib/swift
index fc736a60bc..b119d2fd35 100644
--- a/lib/swift
+++ b/lib/swift
@@ -141,10 +141,6 @@ SWIFT_TEMPURL_KEY=${SWIFT_TEMPURL_KEY:-}
 # Toggle for deploying Swift under HTTPD + mod_wsgi
 SWIFT_USE_MOD_WSGI=${SWIFT_USE_MOD_WSGI:-False}
 
-# Tell Tempest this project is present
-TEMPEST_SERVICES+=,swift
-
-
 # Functions
 # ---------
 
diff --git a/lib/tempest b/lib/tempest
index fe63015c5d..323a90a4cd 100644
--- a/lib/tempest
+++ b/lib/tempest
@@ -536,6 +536,11 @@ function configure_tempest {
     fi
 
     # ``service_available``
+    #
+    # this tempest service list needs to be all the services that
+    # tempest supports, otherwise we can have an erroneous set of
+    # defaults (something defaulting true in Tempest, but not listed here).
+    TEMPEST_SERVICES="key,glance,nova,neutron,cinder,swift,heat,ceilometer,horizon,sahara,ironic,trove,zaqar"
     for service in ${TEMPEST_SERVICES//,/ }; do
         if is_service_enabled $service ; then
             iniset $TEMPEST_CONFIG service_available $service "True"
diff --git a/lib/zaqar b/lib/zaqar
index fdab3a26a8..aa21aac271 100644
--- a/lib/zaqar
+++ b/lib/zaqar
@@ -59,10 +59,6 @@ ZAQAR_SERVICE_HOST=${ZAQAR_SERVICE_HOST:-$SERVICE_HOST}
 ZAQAR_SERVICE_PORT=${ZAQAR_SERVICE_PORT:-8888}
 ZAQAR_SERVICE_PROTOCOL=${ZAQAR_SERVICE_PROTOCOL:-$SERVICE_PROTOCOL}
 
-# Tell Tempest this project is present
-TEMPEST_SERVICES+=,zaqar
-
-
 # Functions
 # ---------
 
diff --git a/stackrc b/stackrc
index 156cb1f85a..67b6424aab 100644
--- a/stackrc
+++ b/stackrc
@@ -78,12 +78,6 @@ fi
 # services will rely on the local toggle variable (e.g. ``KEYSTONE_USE_MOD_WSGI``)
 ENABLE_HTTPD_MOD_WSGI_SERVICES=True
 
-# Tell Tempest which services are available.  The default is set here as
-# Tempest falls late in the configuration sequence.  This differs from
-# ``ENABLED_SERVICES`` in that the project names are used here rather than
-# the service names, i.e.: ``TEMPEST_SERVICES="key,glance,nova"``
-TEMPEST_SERVICES=""
-
 # Set the default Nova APIs to enable
 NOVA_ENABLED_APIS=ec2,osapi_compute,metadata