diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/storage/StorageBusBlockEntity.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/storage/StorageBusBlockEntity.kt
index 0f4c331fe..d8e4b5851 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/storage/StorageBusBlockEntity.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/storage/StorageBusBlockEntity.kt
@@ -1,6 +1,7 @@
 package ru.dbotthepony.mc.otm.block.entity.storage
 
 import it.unimi.dsi.fastutil.ints.Int2ObjectAVLTreeMap
+import it.unimi.dsi.fastutil.ints.IntAVLTreeSet
 import it.unimi.dsi.fastutil.ints.IntArraySet
 import it.unimi.dsi.fastutil.longs.Long2ObjectAVLTreeMap
 import net.minecraft.core.BlockPos
@@ -237,7 +238,7 @@ class StorageBusBlockEntity(blockPos: BlockPos, blockState: BlockState) : Matter
 		}
 
 		private inner class PrioritizedSlotIterator(tuple: TrackedTuple?) : Iterator<Int> {
-			private val tupleIndexes = IntArraySet()
+			private val tupleIndexes = IntAVLTreeSet()
 
 			init {
 				if (tuple != null) {