diff --git a/deploy_matrix.yml b/deploy_matrix.yml
index 35aa0aa..0d5abe2 100644
--- a/deploy_matrix.yml
+++ b/deploy_matrix.yml
@@ -279,7 +279,7 @@
           KC_BOOTSTRAP_ADMIN_PASSWORD: "{{ keycloak_pw }}"
           KC_PROXY_HEADERS: xforwarded
           KC_HTTP_ENABLED: "true"
-          KC_HOSTNAME_STRICT: 'false'
+          KC_HOSTNAME_STRICT: "{{ 'false' }}"
         volumes:
           - "{{ keycloak_data }}:/opt/keycloak/data:Z"
         network: "{{ podman_network }}"