diff --git a/configuration.md b/configuration.md
index e005dc9..14a1abf 100644
--- a/configuration.md
+++ b/configuration.md
@@ -9,8 +9,11 @@ Cache setup
 
 * **driver** - the caching backend, one of: `apcu`, `memcached`, `null` (no-caching), or `redis`  
 
+* **[connection]** - connection information for the selected cache
+
 
 ### config.toml
+General configuration
 
 ### database.toml