diff --git a/tests/roles/bootstrap-host/tasks/check-requirements.yml b/tests/roles/bootstrap-host/tasks/check-requirements.yml
index 977d82870c..cd0707c753 100644
--- a/tests/roles/bootstrap-host/tasks/check-requirements.yml
+++ b/tests/roles/bootstrap-host/tasks/check-requirements.yml
@@ -43,8 +43,6 @@
       msg: "The scenario key words 'metal' and 'nspawn' are mutually exclusive."
     - conditional: "{{ (bootstrap_host_scenario is search('metal')) and (bootstrap_host_scenario is search('haproxy')) }}"
       msg: "The scenario key words 'metal' and 'haproxy' are mutually exclusive."
-    - conditional: "{{ (bootstrap_host_scenario is search('metal')) and (bootstrap_host_scenario is search('horizon')) }}"
-      msg: "The scenario key words 'metal' and 'horizon' are mutually exclusive."
 
 - name: Identify the space available in /
   # NOTE(hwoarang): df does not work reliably on btrfs filesystems
diff --git a/zuul.d/playbooks/pre-gate-scenario.yml b/zuul.d/playbooks/pre-gate-scenario.yml
index 5580e54ce7..c220cdec42 100644
--- a/zuul.d/playbooks/pre-gate-scenario.yml
+++ b/zuul.d/playbooks/pre-gate-scenario.yml
@@ -20,7 +20,6 @@
       aodh: telemetry
       ceilometer: telemetry
       gnocchi: telemetry
-      horizon: lxc
     install_methods:
       - distro
       - source