From c4dda419455fc97b4260506ca841edd6df5867a9 Mon Sep 17 00:00:00 2001
From: Daniel Saukel <sa.da@unitybox.de>
Date: Sat, 21 Apr 2018 15:39:52 +0200
Subject: [PATCH] Fix world config saving error

---
 .../java/io/github/dre2n/dungeonsxl/world/WorldConfig.java    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/io/github/dre2n/dungeonsxl/world/WorldConfig.java b/src/main/java/io/github/dre2n/dungeonsxl/world/WorldConfig.java
index 13dcdc5f..b415cbf4 100644
--- a/src/main/java/io/github/dre2n/dungeonsxl/world/WorldConfig.java
+++ b/src/main/java/io/github/dre2n/dungeonsxl/world/WorldConfig.java
@@ -324,7 +324,9 @@ public class WorldConfig extends GameRuleProvider {
 
         configFile.set("secureObjects", secureObjects);
         configFile.set("invitedPlayers", invitedPlayers);
-        configFile.set("worldEnvironment", worldEnvironment.name());
+        if (worldEnvironment != null) {
+            configFile.set("worldEnvironment", worldEnvironment.name());
+        }
 
         try {
             configFile.save(file);