--- a/net/minecraft/client/renderer/tileentity/TileEntityRendererDispatcher.java
+++ b/net/minecraft/client/renderer/tileentity/TileEntityRendererDispatcher.java
@@ -134,4 +134,9 @@
    public FontRenderer func_147548_a() {
       return this.field_147557_n;
    }
+
+   //Internal, Do not call Use ClientRegistry.
+   public synchronized <T extends TileEntity> void setSpecialRendererInternal(TileEntityType<T> tileEntityType, TileEntityRenderer<? super T> specialRenderer) {
+      this.field_147559_m.put(tileEntityType, specialRenderer);
+   }
 }