diff --git a/EpicHoppers-Plugin/src/main/java/com/songoda/epichoppers/hopper/levels/modules/ModuleAutoCrafting.java b/EpicHoppers-Plugin/src/main/java/com/songoda/epichoppers/hopper/levels/modules/ModuleAutoCrafting.java
index f351694..7600f80 100644
--- a/EpicHoppers-Plugin/src/main/java/com/songoda/epichoppers/hopper/levels/modules/ModuleAutoCrafting.java
+++ b/EpicHoppers-Plugin/src/main/java/com/songoda/epichoppers/hopper/levels/modules/ModuleAutoCrafting.java
@@ -53,6 +53,7 @@ public class ModuleAutoCrafting implements Module {
 
                 Map<Material, Integer> items = new HashMap<>();
                 for (ItemStack item : ingredientMap) {
+                    if (item == null) continue;
                     if (!items.containsKey(item.getType())) {
                         items.put(item.getType(), item.getAmount());
                     } else {