diff --git a/readme.txt b/readme.txt
index 34ab84a7d7..c6f46c1238 100644
--- a/readme.txt
+++ b/readme.txt
@@ -45,6 +45,7 @@ Implimented, API not finalized
 
 Needs work:
 - PowerPC support
+- Subprotocol negotiation
 - Extension support
 - permessage_compress extension
 - Visual Studio / Windows support