diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/container/ItemFilter.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/container/ItemFilter.kt
index dcad21601..4f0f53114 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/container/ItemFilter.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/container/ItemFilter.kt
@@ -27,7 +27,7 @@ class ItemFilter private constructor(private val filter: Array<ItemStack>, val i
 		get() = filter.size
 
 	fun set(index: Int, value: ItemStack): ItemFilter {
-		if (ItemStack.isSameItemSameComponents(filter[index], value) || filter.any { ItemStack.isSameItemSameComponents(it, value) })
+		if (ItemStack.isSameItemSameComponents(filter[index], value) || !value.isEmpty && filter.any { ItemStack.isSameItemSameComponents(it, value) })
 			return this
 
 		return copy(filter.copyOf().also { it[index] = value })