diff --git a/src/main/java/appeng/util/inv/AdaptorDualityInterface.java b/src/main/java/appeng/util/inv/AdaptorDualityInterface.java
index 513d7681d15..28ec4a58c50 100644
--- a/src/main/java/appeng/util/inv/AdaptorDualityInterface.java
+++ b/src/main/java/appeng/util/inv/AdaptorDualityInterface.java
@@ -9,6 +9,7 @@
 import appeng.api.config.Settings;
 import appeng.api.config.Upgrades;
 import appeng.api.storage.IMEMonitor;
+import appeng.api.storage.data.IAEFluidStack;
 import appeng.api.storage.data.IAEItemStack;
 import appeng.api.storage.data.IItemList;
 import appeng.helpers.BlockingModeIgnoreList;
@@ -65,8 +66,8 @@ public boolean containsItems() {
             } else {
                 hasMEItems = !dual.getItemInventory().getStorageList().isEmpty();
             }
-
-            hasMEItems |= !dual.getFluidInventory().getStorageList().isEmpty();
+            IMEMonitor<IAEFluidStack> dualFluidInventory = dual.getFluidInventory();
+            if (dualFluidInventory != null) hasMEItems |= !dualFluidInventory.getStorageList().isEmpty();
         }
         return hasMEItems || super.containsItems();
     }