diff --git a/README.md b/README.md
index c34a1c3..2636706 100644
--- a/README.md
+++ b/README.md
@@ -355,7 +355,7 @@ In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.
 
 ## Copyright
 
-Copyright © 2017-2021 [Cloud Posse, LLC](https://cpco.io/copyright)
+Copyright © 2017-2022 [Cloud Posse, LLC](https://cpco.io/copyright)
 
 
 
diff --git a/main.tf b/main.tf
index 2fb944a..dee7a56 100644
--- a/main.tf
+++ b/main.tf
@@ -127,7 +127,7 @@ resource "aws_cloudfront_distribution" "default" {
 
   viewer_certificate {
     acm_certificate_arn            = var.acm_certificate_arn
-    ssl_support_method             = "sni-only"
+    ssl_support_method             = var.acm_certificate_arn == "" ? null : "sni-only"
     minimum_protocol_version       = var.viewer_minimum_protocol_version
     cloudfront_default_certificate = var.acm_certificate_arn == "" ? true : false
   }