diff --git a/pkg/app/piped/executor/ecs/rollback.go b/pkg/app/piped/executor/ecs/rollback.go
index 87c76306ff..804e748f29 100644
--- a/pkg/app/piped/executor/ecs/rollback.go
+++ b/pkg/app/piped/executor/ecs/rollback.go
@@ -86,6 +86,8 @@ func (e *rollbackExecutor) ensureRollback(ctx context.Context) model.StageStatus
 	if !ok {
 		return model.StageStatus_STAGE_FAILURE
 	}
+	// Even if target groups are not found, we can continue to rollback.
+	// So the accessType does not matter here.
 
 	if !rollback(ctx, &e.Input, platformProviderName, platformProviderCfg, taskDefinition, serviceDefinition, primary, canary) {
 		return model.StageStatus_STAGE_FAILURE