1 files changed, 2 insertions, 0 deletions
diff --git a/src/main/java/gtPlusPlus/xmod/bartworks/BW_Utils.java b/src/main/java/gtPlusPlus/xmod/bartworks/BW_Utils.java
index 650ecfa55e..b816489418 100644
--- a/src/main/java/gtPlusPlus/xmod/bartworks/BW_Utils.java
+++ b/src/main/java/gtPlusPlus/xmod/bartworks/BW_Utils.java
@@ -21,6 +21,8 @@ public class BW_Utils {
     }
 
     public static ItemStack getCorrespondingItemStack(OrePrefixes orePrefixes, short werkstoffID, int amount) {
+        Werkstoff werkstoff = Werkstoff.werkstoffHashMap.get(werkstoffID);
+        if (werkstoff == null) return null;
         return WerkstoffLoader
                 .getCorrespondingItemStackUnsafe(orePrefixes, Werkstoff.werkstoffHashMap.get(werkstoffID), amount);
     }