diff --git a/README.md b/README.md
index a605126d8844c5f51b6e687ad7ce14e1b233362f..b63f39b5fd321cd6a213e8c3b7fbb012a2e8b90b 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,9 @@ vhosts: {}
 # name: *mapsconfig*, see below for definition
 maps: {}
 
+# name: *cacheconfig*, see below for definition
+caches: {}
+
 # force all traffic on ssl, except letsencrypt challenges
 force_ssl: True
 
@@ -157,3 +160,10 @@ ini:
 	post_max_size: 64M
 	upload_max_filesize: 64M
 ```
+
+**cacheconfig**:
+```
+keys_zone_size: "10m"
+cache_size: "1g"
+inactive_time: "10m"
+```
\ No newline at end of file