diff --git a/src/main/kotlin/ru/dbotthepony/kstarbound/world/Chunk.kt b/src/main/kotlin/ru/dbotthepony/kstarbound/world/Chunk.kt
index 2b76a594..218b13ee 100644
--- a/src/main/kotlin/ru/dbotthepony/kstarbound/world/Chunk.kt
+++ b/src/main/kotlin/ru/dbotthepony/kstarbound/world/Chunk.kt
@@ -806,7 +806,7 @@ abstract class Chunk<WorldType : World<WorldType, This>, This : Chunk<WorldType,
 
 						val aabb: AABB
 
-						if (xSpanDepth + ySpanDepth > xSpanSize + ySpanSize) {
+						if (xSpanDepth * ySpanDepth > xSpanSize * ySpanSize) {
 							depthFirst.markSeen()
 							aabb = AABB(depthFirst.mins.toDoubleVector(), depthFirst.maxs.toDoubleVector() + Vector2d.POSITIVE_XY)
 						} else {