diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/capability/MatteryPlayerCapability.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/capability/MatteryPlayerCapability.kt
index 0f3d0349c..612fc76d2 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/capability/MatteryPlayerCapability.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/capability/MatteryPlayerCapability.kt
@@ -175,6 +175,10 @@ class MatteryPlayerCapability(val ply: Player) : ICapabilityProvider, INBTSerial
 	data class ItemStackLeftoverEvent(val stack: ItemStack, val capability: MatteryPlayerCapability) : Event() {
 		val player get() = capability.ply
 		val level: Level get() = capability.ply.level()
+
+		override fun isCancelable(): Boolean {
+			return false
+		}
 	}
 
 	private inner class PlayerMatteryContainer(size: Int) : MatteryContainer(size) {