diff --git a/src/main/java/com/glodblock/github/common/parts/PartFluidP2PInterface.java b/src/main/java/com/glodblock/github/common/parts/PartFluidP2PInterface.java
index 2882622d..76e0d228 100644
--- a/src/main/java/com/glodblock/github/common/parts/PartFluidP2PInterface.java
+++ b/src/main/java/com/glodblock/github/common/parts/PartFluidP2PInterface.java
@@ -251,8 +251,8 @@ public class PartFluidP2PInterface extends PartP2PTunnelStatic<PartFluidP2PInter
                 for (int i = 0; i < upgrades.getSizeInventory(); ++i) {
                     newUpgrade.setInventorySlotContents(i, upgrades.getStackInSlot(i));
                 }
-                IInventory storage = (AppEngInternalInventory) duality.getStorage();
-                IInventory newStorage = (AppEngInternalInventory) newDuality.getStorage();
+                IInventory storage = (IInventory) duality.getStorage();
+                IInventory newStorage = (IInventory) newDuality.getStorage();
                 for (int i = 0; i < storage.getSizeInventory(); ++i) {
                     newStorage.setInventorySlotContents(i, storage.getStackInSlot(i));
                 }