diff --git a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java
index 2eb06e517..a6425d34b 100644
--- a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java
+++ b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_MultiBlockBase.java
@@ -890,8 +890,8 @@ public boolean depleteInput(ItemStack aStack) {
             if (isValidMetaTileEntity(tHatch)) {
                 for (int i = 16; i >= 1; i--) {
                     if (GT_Utility.areStacksEqual(aStack, tHatch.getBaseMetaTileEntity().getStackInSlot(i))) {
-                        if (tHatch.getBaseMetaTileEntity().getStackInSlot(0).stackSize >= aStack.stackSize) {
-                            tHatch.getBaseMetaTileEntity().decrStackSize(0, aStack.stackSize);
+                        if (tHatch.getBaseMetaTileEntity().getStackInSlot(i).stackSize >= aStack.stackSize) {
+                            tHatch.getBaseMetaTileEntity().decrStackSize(i, aStack.stackSize);
                             return true;
                         }
                     }
@@ -904,8 +904,8 @@ public boolean depleteInput(ItemStack aStack) {
             if (isValidMetaTileEntity(tHatch)) {
                 for (int i = tHatch.getBaseMetaTileEntity().getSizeInventory() - 1; i >= 0; i--) {
                     if (GT_Utility.areStacksEqual(aStack, tHatch.getBaseMetaTileEntity().getStackInSlot(i))) {
-                        if (tHatch.getBaseMetaTileEntity().getStackInSlot(0).stackSize >= aStack.stackSize) {
-                            tHatch.getBaseMetaTileEntity().decrStackSize(0, aStack.stackSize);
+                        if (tHatch.getBaseMetaTileEntity().getStackInSlot(i).stackSize >= aStack.stackSize) {
+                            tHatch.getBaseMetaTileEntity().decrStackSize(i, aStack.stackSize);
                             return true;
                         }
                     }