diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/core/EuclidMath.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/core/EuclidMath.kt
index cbdf67f10..8b08843ea 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/core/EuclidMath.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/core/EuclidMath.kt
@@ -422,8 +422,8 @@ private fun ellipsoidShapeCacheKey(x: Int, y: Int, z: Int): Long {
 	require(z > 0) { "Negative Z $z" }
 
 	return (x.toLong() and 0xFFFFFL) or
-			((y.toLong() ushr 20) and 0xFFFFFL) or
-			((z.toLong() ushr 40) and 0xFFFFFL)
+			((y.toLong() and 0xFFFFFL) shl 20) or
+			((z.toLong() and 0xFFFFFL) shl 40)
 }
 
 private val blockShapeCache = Long2ObjectOpenHashMap<SoftReference<List<BlockPos>>>()