diff --git a/src/main/java/com/glodblock/github/inventory/FluidConvertingInventoryAdaptor.java b/src/main/java/com/glodblock/github/inventory/FluidConvertingInventoryAdaptor.java
index 459a23c6..322858e8 100644
--- a/src/main/java/com/glodblock/github/inventory/FluidConvertingInventoryAdaptor.java
+++ b/src/main/java/com/glodblock/github/inventory/FluidConvertingInventoryAdaptor.java
@@ -338,8 +338,13 @@ public class FluidConvertingInventoryAdaptor extends InventoryAdaptor {
     }
 
     private boolean isGTMachine(Object o) {
-        return ModAndClassUtil.GT5 && o instanceof TileEntity
-                && ((TileEntity) o).getBlockType().getUnlocalizedName().equals("gt.blockmachines");
+        if (!(ModAndClassUtil.GT5 || ModAndClassUtil.GT5NH)) return false;
+
+        if (o instanceof TileEntity te) {
+            return te.getBlockType().getUnlocalizedName().equals("gt.blockmachines");
+        }
+
+        return false;
     }
 
     private boolean isItemConduit(TileEntity te) {