From 6945882cd36223533be4e020279b31151bc8b217 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Wed, 14 Mar 2018 17:43:13 +0100
Subject: [PATCH] Fix a Dialyzer warning

---
 src/cowboy_websocket.erl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cowboy_websocket.erl b/src/cowboy_websocket.erl
index 45e96b60..4f8117a3 100644
--- a/src/cowboy_websocket.erl
+++ b/src/cowboy_websocket.erl
@@ -62,7 +62,7 @@
 -export_type([opts/0]).
 
 -record(state, {
-	parent = undefined :: pid(),
+	parent :: undefined | pid(),
 	ref :: ranch:ref(),
 	socket = undefined :: inet:socket() | undefined,
 	transport = undefined :: module(),