diff --git a/src/main/java/com/songoda/skyblock/biome/BiomeManager.java b/src/main/java/com/songoda/skyblock/biome/BiomeManager.java
index a4651dd0..23fe15a5 100644
--- a/src/main/java/com/songoda/skyblock/biome/BiomeManager.java
+++ b/src/main/java/com/songoda/skyblock/biome/BiomeManager.java
@@ -23,20 +23,21 @@ public class BiomeManager {
     }
 
     public void setBiome(Island island, Biome biome) {
-        Set<Chunk> chunks = new HashSet<>();
         Location location = island.getLocation(IslandWorld.Normal, IslandEnvironment.Island);
         int radius = (int) Math.ceil(island.getRadius());
 
         for (int x = location.getBlockX() - radius; x < location.getBlockX() + radius; x++) {
             for (int z = location.getBlockZ() - radius; z < location.getBlockZ() + radius; z++) {
                 location.getWorld().setBiome(x, z, biome);
-                Chunk chunk = location.getWorld().getChunkAt(x >> 4, z >> 4);
-                chunks.add(chunk);
             }
         }
 
-        for (Chunk chunk : chunks)
-            updateBiome(island, chunk);
+        for (int x = location.getBlockX() - radius; x < location.getBlockX() + radius; x += 16) {
+            for (int z = location.getBlockZ() - radius; z < location.getBlockZ() + radius; z += 16) {
+                Chunk chunk = location.getWorld().getChunkAt(x >> 4, z >> 4);
+                updateBiome(island, chunk);
+            }
+        }
     }
 
     private void updateBiome(Island island, Chunk chunk) {