diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/MatterCapacitorBankBlockEntity.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/MatterCapacitorBankBlockEntity.kt
index ba365952a..a45fd8958 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/MatterCapacitorBankBlockEntity.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/MatterCapacitorBankBlockEntity.kt
@@ -126,6 +126,8 @@ class MatterCapacitorBankBlockEntity(p_155229_: BlockPos, p_155230_: BlockState)
 			capacitorStatus[slot].boolean = new.getCapability(MatteryCapability.MATTER).isPresent
 			gaugeLevel = (storedMatter / maxStoredMatter).toFloat()
 		}
+
+		override fun getMaxStackSize(): Int = 1
 	}.also(::addDroppableContainer)
 
 	val itemConfig = ConfigurableItemHandler(inputOutput = container.handler(object : HandlerFilter {
diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/PatternStorageBlockEntity.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/PatternStorageBlockEntity.kt
index 59230312f..1e4e0a821 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/PatternStorageBlockEntity.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/PatternStorageBlockEntity.kt
@@ -54,9 +54,7 @@ class PatternStorageBlockEntity(p_155229_: BlockPos, p_155230_: BlockState) :
 			super.setChanged(slot, new, old)
 		}
 
-		override fun getMaxStackSize(): Int {
-			return 1
-		}
+		override fun getMaxStackSize(): Int = 1
 	}.also(::addDroppableContainer)
 
 	private fun updateBlockstate() {
diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/tech/BatteryBankBlockEntity.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/tech/BatteryBankBlockEntity.kt
index f610bbe08..8e429535c 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/tech/BatteryBankBlockEntity.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/tech/BatteryBankBlockEntity.kt
@@ -35,6 +35,8 @@ class BatteryBankBlockEntity(p_155229_: BlockPos, p_155230_: BlockState) : Matte
 			batteryStatus[slot].boolean = new.getCapability(ForgeCapabilities.ENERGY).isPresent
 			gaugeLevel = batteryLevel.percentage(maxBatteryLevel)
 		}
+
+		override fun getMaxStackSize(): Int = 1
 	}.also(::addDroppableContainer)
 
 	val batteryStatus = immutableList(CAPACITY) {