diff --git a/src/main/java/com/gregtechceu/gtceu/common/machine/multiblock/part/RotorHolderPartMachine.java b/src/main/java/com/gregtechceu/gtceu/common/machine/multiblock/part/RotorHolderPartMachine.java
index e79ce47792..5994a9a3fd 100644
--- a/src/main/java/com/gregtechceu/gtceu/common/machine/multiblock/part/RotorHolderPartMachine.java
+++ b/src/main/java/com/gregtechceu/gtceu/common/machine/multiblock/part/RotorHolderPartMachine.java
@@ -131,7 +131,7 @@ private void onRotorInventoryChanged() {
 
     @Override
     public boolean hasRotor() {
-        return rotorColor != 0;
+        return inventory.getStackInSlot(0) != ItemStack.EMPTY;
     }
 
     protected void updateRotorSubscription() {