diff --git a/src/cowboy_http_websocket.erl b/src/cowboy_http_websocket.erl
index f3f1cae6..f5500414 100644
--- a/src/cowboy_http_websocket.erl
+++ b/src/cowboy_http_websocket.erl
@@ -14,27 +14,9 @@
%% @doc WebSocket protocol implementation.
%%
-%% Supports the protocol version 0 (hixie-76), version 7 (hybi-7)
-%% and version 8 (hybi-8, hybi-9 and hybi-10).
-%%
-%% Version 0 is supported by the following browsers:
-%%
-%% - Firefox 4-5 (disabled by default)
-%% - Chrome 6-13
-%% - Safari 5.0.1+
-%% - Opera 11.00+ (disabled by default)
-%%
-%%
-%% Version 7 is supported by the following browser:
-%%
-%%
-%% Version 8+ is supported by the following browsers:
-%%
-%% - Firefox 7+
-%% - Chrome 14+
-%%
+%% When using websockets, make sure that the crypto application is
+%% included in your release. If you are not using releases then there
+%% is no need for concern as crypto is already included.
-module(cowboy_http_websocket).
-export([upgrade/4]). %% API.