diff --git a/src/main/java/carpet/mixins/BiomeArray_getBiomeArrayMixin.java b/src/main/java/carpet/mixins/BiomeArray_getBiomeArrayMixin.java
index 9dac8e3d..f0acfa6b 100644
--- a/src/main/java/carpet/mixins/BiomeArray_getBiomeArrayMixin.java
+++ b/src/main/java/carpet/mixins/BiomeArray_getBiomeArrayMixin.java
@@ -1,6 +1,7 @@
 package carpet.mixins;
 
 import carpet.fakes.BiomeArrayInterface;
+import net.minecraft.class_5742;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.MathHelper;
 import net.minecraft.world.World;
@@ -29,9 +30,9 @@ public class BiomeArray_getBiomeArrayMixin implements BiomeArrayInterface
     @Override
     public void setBiomeAtIndex(BlockPos pos, World world, Biome what)
     {
-        int int_4 = (pos.getX() >> 2) & HORIZONTAL_BIT_MASK;
-        int int_5 = MathHelper.clamp((pos.getY() >> 2)-field_28126, 0, field_28127);
-        int int_6 = (pos.getZ() >> 2) & HORIZONTAL_BIT_MASK;
+        int int_4 = class_5742.method_33100(pos.getX()) & HORIZONTAL_BIT_MASK;
+        int int_5 = MathHelper.clamp(class_5742.method_33100(pos.getY())-field_28126, 0, field_28127);
+        int int_6 = class_5742.method_33100(pos.getZ()) & HORIZONTAL_BIT_MASK;
         data[(int_5 << (HORIZONTAL_SECTION_COUNT + HORIZONTAL_SECTION_COUNT)) | (int_6 << HORIZONTAL_SECTION_COUNT) | int_4] = what;
     }
 }