From 0d3ef8e7a30806a691dc19d8b4bca729f8e900d7 Mon Sep 17 00:00:00 2001
From: themode <themode@outlook.fr>
Date: Sat, 14 Nov 2020 03:21:16 +0100
Subject: [PATCH] Synchronize biome registration

---
 .../java/net/minestom/server/world/biomes/BiomeManager.java   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/net/minestom/server/world/biomes/BiomeManager.java b/src/main/java/net/minestom/server/world/biomes/BiomeManager.java
index a803c37a9..55904c7a5 100644
--- a/src/main/java/net/minestom/server/world/biomes/BiomeManager.java
+++ b/src/main/java/net/minestom/server/world/biomes/BiomeManager.java
@@ -28,7 +28,7 @@ public class BiomeManager {
      *
      * @param biome the biome to add
      */
-    public void addBiome(Biome biome) {
+    public synchronized void addBiome(Biome biome) {
         this.biomes.put(biome.getId(), biome);
     }
 
@@ -37,7 +37,7 @@ public class BiomeManager {
      *
      * @param biome the biome to remove
      */
-    public void removeBiome(Biome biome) {
+    public synchronized void removeBiome(Biome biome) {
         this.biomes.remove(biome.getId());
     }