diff --git a/jenkins-packer-demo/output.tf b/jenkins-packer-demo/output.tf
index 4c9668a..1a3f26e 100644
--- a/jenkins-packer-demo/output.tf
+++ b/jenkins-packer-demo/output.tf
@@ -1,6 +1,6 @@
 output "jenkins-ip" {
-  value = "${aws_instance.jenkins-instance.*.public_ip}"
+  value = ["${aws_instance.jenkins-instance.*.public_ip}"]
 }
 output "app-ip" {
-  value = "${aws_instance.app-instance.*.public_ip}"
+  value = ["${aws_instance.app-instance.*.public_ip}"]
 }