diff --git a/src/main/kotlin/net/shadowfacts/phycon/block/terminal/AbstractTerminalScreenHandler.kt b/src/main/kotlin/net/shadowfacts/phycon/block/terminal/AbstractTerminalScreenHandler.kt
index e52621a..6a15149 100644
--- a/src/main/kotlin/net/shadowfacts/phycon/block/terminal/AbstractTerminalScreenHandler.kt
+++ b/src/main/kotlin/net/shadowfacts/phycon/block/terminal/AbstractTerminalScreenHandler.kt
@@ -205,7 +205,7 @@ abstract class AbstractTerminalScreenHandler<T: AbstractTerminalBlockEntity>(
 		} else if (isPlayerSlot(slotId)) {
 			val slotsInsertedInto = tryInsertItem(slot.stack, bufferSlotsStart until playerSlotsStart) { terminal.internalBuffer.getMode(it - bufferSlotsStart) != TerminalBufferInventory.Mode.FROM_NETWORK }
 			slotsInsertedInto.forEach { terminal.internalBuffer.markSlot(it - bufferSlotsStart, TerminalBufferInventory.Mode.TO_NETWORK) }
-			if (slot.stack.isEmpty) {
+			if (slotsInsertedInto.isEmpty()) {
 				return ItemStack.EMPTY
 			}
 		}