diff --git a/README.md b/README.md
index c86ba1a..ff46a74 100644
--- a/README.md
+++ b/README.md
@@ -20,3 +20,6 @@ A client `cert-service-client` can connect to this socket and make a signing req
 Using `SO_PEERCRED` the server decides if the client is allowed to have its certificate signed.
 
 The peers communicate using a custom protocol based on [ASN.1](https://en.wikipedia.org/wiki/ASN.1).
+
+**This is a proof of concept put together in an evening.
+The quality of the code reflects that.**