diff --git a/src/cowboy_websocket.erl b/src/cowboy_websocket.erl
index 1df32c93..df501623 100644
--- a/src/cowboy_websocket.erl
+++ b/src/cowboy_websocket.erl
@@ -21,7 +21,7 @@
 
 %% Ignore the deprecation warning for crypto:sha/1.
 %% @todo Remove when we support only R16B+.
--compile({nowarn_deprecated_function, {crypto, sha, 1}}).
+-compile(nowarn_deprecated_function).
 
 %% API.
 -export([upgrade/4]).