--- a/net/minecraft/world/chunk/IChunk.java
+++ b/net/minecraft/world/chunk/IChunk.java
@@ -145,4 +145,9 @@
    boolean func_217310_r();
 
    void func_217305_b(boolean p_217305_1_);
+
+   @Nullable
+   default net.minecraft.world.IWorld getWorldForge() {
+      return null;
+   }
 }
