diff --git a/config/environments/production.rb b/config/environments/production.rb
index 357dcb55..7291c6fa 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -50,13 +50,11 @@ Osem::Application.configure do
 
   # Use a different cache store in production
   # config.cache_store = :mem_cache_store
-  if ENV["MEMCACHEDCLOUD_SERVERS"]
-    config.cache_store = :dalli_store, ENV["MEMCACHEDCLOUD_SERVERS"].split(','), {
-      username: ENV["MEMCACHEDCLOUD_USERNAME"],
-      password: ENV["MEMCACHEDCLOUD_PASSWORD"]
+  if ENV["OSEM_MEMCACHED_SERVERS"]
+    config.cache_store = :mem_cache_store, ENV["OSEM_MEMCACHED_SERVERS"].split(','), {
+      username: ENV["OSEM_MEMCACHED_USERNAME"],
+      password: ENV["OSEM_MEMCACHED_PASSWORD"]
     }
-  else
-    config.cache_store = :memory_store, { size: 64.megabytes }
   end
 
   # Enable serving of images, stylesheets, and JavaScripts from an asset server
diff --git a/dotenv.example b/dotenv.example
index 17877760..ca6bbfa8 100644
--- a/dotenv.example
+++ b/dotenv.example
@@ -27,6 +27,11 @@
 # The name of the database
 # OSEM_DB_NAME=osem_production
 
+# The memached servers to use, default is a file based cache
+# OSEM_MEMCACHED_SERVERS='cache-1.example.com,cache-2.example.com'
+# OSEM_MEMCACHED_USERNAME='root'
+# OSEM_MEMCACHED_PASSWORD='1234'
+
 # The ruby version to use
 # OSEM_RUBY_VERSION=2.5.0