diff --git a/src/main/scala/mrtjp/projectred/transportation/ChipCrafting.scala b/src/main/scala/mrtjp/projectred/transportation/ChipCrafting.scala
index 175b6df28..3cc8e18fe 100644
--- a/src/main/scala/mrtjp/projectred/transportation/ChipCrafting.scala
+++ b/src/main/scala/mrtjp/projectred/transportation/ChipCrafting.scala
@@ -261,7 +261,8 @@ class ChipCrafting
   }
 
   override def registerExcess(promise: DeliveryPromise) {
-    if (getCraftedItem.key == promise.item)
+    val craftedItem = getCraftedItem
+    if (craftedItem != null && craftedItem.key == promise.item)
       excess += promise.item -> promise.size
   }