diff --git a/src/main/antora/modules/ROOT/pages/auditing.adoc b/src/main/antora/modules/ROOT/pages/auditing.adoc
index 57da96964..4740ed47f 100644
--- a/src/main/antora/modules/ROOT/pages/auditing.adoc
+++ b/src/main/antora/modules/ROOT/pages/auditing.adoc
@@ -104,6 +104,7 @@ class SpringSecurityAuditorAware implements ReactiveAuditorAware<User> {
   public Mono<User> getCurrentAuditor() {
 
     return ReactiveSecurityContextHolder.getContext()
+                .filter(it -> it.getAuthentication() != null)
                 .map(SecurityContext::getAuthentication)
                 .filter(Authentication::isAuthenticated)
                 .map(Authentication::getPrincipal)