diff --git a/README.md b/README.md
index 944bd66..e4e25ac 100644
--- a/README.md
+++ b/README.md
@@ -658,7 +658,7 @@ spec:
       timeoutSeconds: 10
   []
 ```
-Session persistence is only possible
+Session persistence (`None` by default) is only supported on client ip-address. Cookie-stickiness or stickiness on any other/higher layer is not supported yet.
 
 ## What happens if a node goes down? <a name="user-content-what-happens-node-down"></a>
 If a node goes down kubernetes marks this node as *NotReady*, but nothing else: