From e054d25982c51f977b66de19ad015d97010c45e8 Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@snoyman.com>
Date: Fri, 8 Dec 2017 10:25:33 +0200
Subject: [PATCH] Missed a ?

---
 Settings.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Settings.hs b/Settings.hs
index e2d8244..482af6c 100644
--- a/Settings.hs
+++ b/Settings.hs
@@ -68,7 +68,7 @@ instance FromJSON AppSettings where
         appIpFromHeader           <- o .: "ip-from-header"
         appPostgresString         <- o .: "postgres-string"
 
-        dev                       <- o .: "development" .!= defaultDev
+        dev                       <- o .:? "development" .!= defaultDev
 
         appDetailedRequestLogging <- o .:? "detailed-logging" .!= dev
         appShouldLogAll           <- o .:? "should-log-all"   .!= dev