diff --git a/roles/custom/matrix-ldap-registration-proxy/defaults/main.yml b/roles/custom/matrix-ldap-registration-proxy/defaults/main.yml
index 966f46529..768f52271 100644
--- a/roles/custom/matrix-ldap-registration-proxy/defaults/main.yml
+++ b/roles/custom/matrix-ldap-registration-proxy/defaults/main.yml
@@ -52,7 +52,7 @@ matrix_ldap_registration_proxy_container_labels_traefik_tls_certResolver: defaul
 # Controls whether labels will be added that expose ldap-registration-proxy's registration endpoint (matrix_ldap_registration_proxy_container_labels_registration_endpoint_path_prefix)
 matrix_ldap_registration_proxy_container_labels_registration_endpoint_enabled: true
 matrix_ldap_registration_proxy_container_labels_registration_endpoint_hostname: "{{ matrix_ldap_registration_proxy_hostname }}"
-matrix_ldap_registration_proxy_container_labels_registration_endpoint_path_prefix: "/_matrix/client/(r0|v3)/register"
+matrix_ldap_registration_proxy_container_labels_registration_endpoint_path_prefix: "/_matrix/client/{version:(r0|v3)}/register"
 matrix_ldap_registration_proxy_container_labels_registration_endpoint_traefik_rule: "Host(`{{ matrix_ldap_registration_proxy_container_labels_registration_endpoint_hostname }}`) && PathPrefix(`{{ matrix_ldap_registration_proxy_container_labels_registration_endpoint_path_prefix }}`)"
 matrix_ldap_registration_proxy_container_labels_registration_endpoint_traefik_priority: 0
 matrix_ldap_registration_proxy_container_labels_registration_endpoint_traefik_entrypoints: "{{ matrix_ldap_registration_proxy_container_labels_traefik_entrypoints }}"