diff --git a/guides/source/caching_with_rails.md b/guides/source/caching_with_rails.md
index b0ab88bf595d450b2c58e0be06055075803be1fd..0d45e5fb2857f173fad6050a906792c96be5d6f1 100644
--- a/guides/source/caching_with_rails.md
+++ b/guides/source/caching_with_rails.md
@@ -189,7 +189,7 @@ The main methods to call are `read`, `write`, `delete`, `exist?`, and `fetch`. T
 
 There are some common options used by all cache implementations. These can be passed to the constructor or the various methods to interact with entries.
 
-* `:namespace` - This option can be used to create a namespace within the cache store. It is especially useful if your application shares a cache with other applications. The default value will include the application name and Rails environment.
+* `:namespace` - This option can be used to create a namespace within the cache store. It is especially useful if your application shares a cache with other applications.
 
 * `:compress` - This option can be used to indicate that compression should be used in the cache. This can be useful for transferring large cache entries over a slow network.