diff --git a/staging/src/k8s.io/apiserver/pkg/endpoints/filters/audit.go b/staging/src/k8s.io/apiserver/pkg/endpoints/filters/audit.go
index 70faf8ea67e..d84d46e3c7f 100644
--- a/staging/src/k8s.io/apiserver/pkg/endpoints/filters/audit.go
+++ b/staging/src/k8s.io/apiserver/pkg/endpoints/filters/audit.go
@@ -83,7 +83,9 @@ var _ http.Hijacker = &fancyResponseWriterDelegator{}
 //    - source ip of the request
 //    - HTTP method being invoked
 //    - original user invoking the operation
+//    - original user's groups info
 //    - impersonated user for the operation
+//    - impersonated groups info
 //    - namespace of the request or <none>
 //    - uri is the full URI as requested
 // 2. the response line containing: