diff --git a/ansible/roles/horizon/tasks/start.yml b/ansible/roles/horizon/tasks/start.yml
index e3f8270ff8..60b7d20f15 100644
--- a/ansible/roles/horizon/tasks/start.yml
+++ b/ansible/roles/horizon/tasks/start.yml
@@ -12,6 +12,7 @@
       ENABLE_NEUTRON_LBAAS: "{{ 'yes' if  enable_neutron_lbaas | bool else 'no' }}"
       ENABLE_SAHARA: "{{ 'yes' if enable_sahara | bool else 'no' }}"
       ENABLE_TROVE: "{{ 'yes' if enable_trove | bool else 'no' }}"
+      ENABLE_ZAQAR: "{{ 'yes' if enable_zaqar | bool else 'no' }}"
     volumes:
       - "{{ node_config_directory }}/horizon/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"