diff --git a/website/source/docs/configuration/resources.html.md b/website/source/docs/configuration/resources.html.md
index 8f21e96e1..c74f030c9 100644
--- a/website/source/docs/configuration/resources.html.md
+++ b/website/source/docs/configuration/resources.html.md
@@ -118,7 +118,7 @@ variable "instance_ips" {
 
 resource "aws_instance" "app" {
   count = "3"
-  private_ip = "${lookup(instance_ips, count.index)}"
+  private_ip = "${lookup(var.instance_ips, count.index)}"
   # ...
 }
 ```