diff --git a/config/environments/production.rb b/config/environments/production.rb
index 5b2ff786..62f9251e 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -101,6 +101,7 @@
   ### S3 Configuration ###
   config.lesson_store = :s3
 
+  config.cloudfront_url = 'https://d1j5ysqdewbwao.cloudfront.net'
   config.zip_bucket_name = 'dl-prodapp-lessons-zipped'
   config.s3_bucket_name = 'dl-prodapp-lessons'
 
diff --git a/config/environments/staging.rb b/config/environments/staging.rb
index 3347785f..da1b0b54 100644
--- a/config/environments/staging.rb
+++ b/config/environments/staging.rb
@@ -62,6 +62,7 @@
   ### S3 Configuration ###
   config.lesson_store = :s3
 
+  config.cloudfront_url = 'https://dmx80r2ae8pd1.cloudfront.net'
   config.zip_bucket_name = 'dl-stageapp-lessons-zipped'
   config.s3_bucket_name = 'dl-stageapp-lessons'
 
diff --git a/lib/s3_proxy.rb b/lib/s3_proxy.rb
index 74412d00..892c671c 100644
--- a/lib/s3_proxy.rb
+++ b/lib/s3_proxy.rb
@@ -8,7 +8,7 @@ def perform_request(env)
 
     # use rack proxy for anything hitting our host app at /example_service
     if use_s3? && request.path =~ %r{^/storylines}
-      @backend = URI("https://#{s3_bucket_name}.s3-#{s3_region}.amazonaws.com")
+      @backend = URI(cloudfront_url)
 
       # most backends required host set properly, but rack-proxy doesn't set this for you automatically
       # even when a backend host is passed in via the options
@@ -32,11 +32,7 @@ def use_s3?
     Rails.configuration.lesson_store == :s3
   end
 
-  def s3_bucket_name
-    Rails.configuration.s3_bucket_name
-  end
-
-  def s3_region
-    Rails.configuration.s3_region
+  def cloudfront_url
+    Rails.configuration.cloudfront_url
   end
 end