diff --git a/Anvil-API.md b/Anvil-API.md
index 8b9d477..18c11e2 100644
--- a/Anvil-API.md
+++ b/Anvil-API.md
@@ -59,7 +59,7 @@ queue.filterWorld(new MCAFilter() {
         int distanceX = Math.abs((mca.getX() << 9) + 256) - 256;
         int distanceZ = Math.abs((mca.getZ() << 9) + 256) - 256;
         int distanceSquared = distanceX * distanceX + distanceZ * distanceZ;
-        if (distanceSquared > radius) {
+        if (distanceSquared > radiusSquared) {
             // Delete this file since it's outside the radius
             mca.close();
             mca.getFile().delete();