diff --git a/pkg/features/kube_features.go b/pkg/features/kube_features.go
index 61b4d26ece0..18856478b3d 100644
--- a/pkg/features/kube_features.go
+++ b/pkg/features/kube_features.go
@@ -64,6 +64,7 @@ const (
 	//
 	// Ensures guaranteed scheduling of pods marked with a special pod annotation `scheduler.alpha.kubernetes.io/critical-pod`
 	// and also prevents them from being evicted from a node.
+	// Note: This feature is not supported for `BestEffort` pods.
 	ExperimentalCriticalPodAnnotation utilfeature.Feature = "ExperimentalCriticalPodAnnotation"
 )