diff --git a/server/src/main/java/server/world/WorldServer.java b/server/src/main/java/server/world/WorldServer.java
index 166eecbb..c2ba064e 100755
--- a/server/src/main/java/server/world/WorldServer.java
+++ b/server/src/main/java/server/world/WorldServer.java
@@ -1795,6 +1795,8 @@ public final class WorldServer extends AWorldServer {
 	}
 
 	public void setBiome(BlockPos pos, Biome biome) {
+		if(this.exterminated)
+			return;
 		ChunkServer chunk = this.getChunk(pos);
 		if(chunk == null || !chunk.isLoaded())
 			return;