Update DualityInterface.java (#1238)

src/main/java/appeng/helpers/DualityInterface.java

@@ -1647,6 +1647,7 @@ public class DualityInterface implements IGridTickable, IStorageMonitorable, IIn
      * Returns the suffix to append after translation, or null if none.
      */
     public String getAdjacentNameSuffix() {
+        if (((ICustomNameObject) this.iHost).hasCustomName()) return null;
         final TileEntity hostTile = this.iHost.getTileEntity();
         if (hostTile == null || hostTile.getWorldObj() == null) return null;
         for (final ForgeDirection direction : this.iHost.getTargets()) {