diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index e9f78bc..9c8555d 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -94,7 +94,8 @@
 
   /// VTables - Holds information about C++ vtables.
   CodeGenVTables VTables;
-  
+  friend class CodeGenVTables;
+
   CGObjCRuntime* Runtime;
   CGDebugInfo* DebugInfo;