From 9317751cb314328340fede4cb780562b77afe8c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Mon, 2 Oct 2017 16:19:13 +0200
Subject: Fix cowboy:set_env when the env value is missing

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

(limited to 'src')

diff --git a/src/cowboy.erl b/src/cowboy.erl
index f01bcf4..99615de 100644
--- a/src/cowboy.erl
+++ b/src/cowboy.erl
@@ -68,6 +68,6 @@ stop_listener(Ref) ->
 -spec set_env(ranch:ref(), atom(), any()) -> ok.
 set_env(Ref, Name, Value) ->
 	Opts = ranch:get_protocol_options(Ref),
-	{_, Env} = maps:find(env, Opts),
+	Env = maps:get(env, Opts, #{}),
 	Opts2 = maps:put(env, maps:put(Name, Value, Env), Opts),
 	ok = ranch:set_protocol_options(Ref, Opts2).
-- 
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