diff --git a/README.md b/README.md
index bb78c8b..3c27b23 100644
--- a/README.md
+++ b/README.md
@@ -1188,6 +1188,7 @@ CloudFront
 ### CloudFront Gotchas and Limitations
 
 -	If using S3 as a backing store, remember that the endpoints for website hosting and for general S3 are different. Example: “bucketname.s3.amazonaws.com” is a standard S3 serving endpoint, but to have redirect and error page support, you need to use the website hosting endpoint listed for that bucket, e.g. “bucketname.s3-website-us-east-1.amazonaws.com” (or the appropriate region).
+-   🔸By default, CloudFront will not forward HTTP Host: headers through to your origin servers. This can be problematic for your origin if you run multiple sites switched with host headers. You can [enable host header forwarding](http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/RequestAndResponseBehaviorCustomOrigin.html#request-custom-headers-behavior) in the default cache behavior settings.
 
 DirectConnect
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