diff --git a/website/source/docs/builders/amazon-ebs.html.markdown b/website/source/docs/builders/amazon-ebs.html.markdown
index ba69493b9..701f1190d 100644
--- a/website/source/docs/builders/amazon-ebs.html.markdown
+++ b/website/source/docs/builders/amazon-ebs.html.markdown
@@ -132,7 +132,7 @@ Optional:
 * `vpc_id` (string) - If launching into a VPC subnet, Packer needs the
   VPC ID in order to create a temporary security group within the VPC.
 
-* `avail_zone` (string) - Destination availability zone to launch instance in.
+* `availability_zone` (string) - Destination availability zone to launch instance in.
   Leave this empty to allow Amazon to auto-assign.
 
 ## Basic Example