diff --git a/resources/elasticache-users.go b/resources/elasticache-users.go
index 1e432b5d..5552eb9e 100644
--- a/resources/elasticache-users.go
+++ b/resources/elasticache-users.go
@@ -3,7 +3,8 @@ package resources
 import (
 	"context"
 	"fmt"
-	"strings"
+
+	"github.com/gotidy/ptr"
 
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/service/elasticache"
@@ -71,7 +72,7 @@ func (l *ElasticacheUserLister) List(_ context.Context, o interface{}) ([]resour
 }
 
 func (i *ElasticacheUser) Filter() error {
-	if strings.HasPrefix(*i.userName, "default") {
+	if ptr.ToString(i.userID) == "default" {
 		return fmt.Errorf("cannot delete default user")
 	}
 	return nil