diff --git a/outputs.tf b/outputs.tf
index 82e7b4e..0ab948d 100644
--- a/outputs.tf
+++ b/outputs.tf
@@ -45,7 +45,7 @@ output "https_listener_arn" {
 
 output "listener_arns" {
   description = "A list of all the listener ARNs"
-  value       = ["${compact(concat(aws_lb_listener.http.*.arn, aws_lb_listener.https.*.arn))}"]
+  value       = "${compact(concat(aws_lb_listener.http.*.arn, aws_lb_listener.https.*.arn))}"
 }
 
 output "access_logs_bucket_id" {