diff --git a/clang/include/clang/AST/Type.h b/clang/include/clang/AST/Type.h
index bcefaeb1f607..2ee479fd8a90 100644
--- a/clang/include/clang/AST/Type.h
+++ b/clang/include/clang/AST/Type.h
@@ -1109,6 +1109,7 @@ public:
   
   void Profile(llvm::FoldingSetNodeID &ID);
   static void Profile(llvm::FoldingSetNodeID &ID, 
+                      const ObjCInterfaceDecl *Decl,
                       ObjCProtocolDecl **protocols, unsigned NumProtocols);
  
   static bool classof(const Type *T) { 
diff --git a/clang/lib/AST/Type.cpp b/clang/lib/AST/Type.cpp
index f80f3641da02..637061c499bf 100644
--- a/clang/lib/AST/Type.cpp
+++ b/clang/lib/AST/Type.cpp
@@ -704,14 +704,16 @@ void FunctionTypeProto::Profile(llvm::FoldingSetNodeID &ID) {
 }
 
 void ObjCQualifiedInterfaceType::Profile(llvm::FoldingSetNodeID &ID,
+                                         const ObjCInterfaceDecl *Decl,
                                          ObjCProtocolDecl **protocols, 
                                          unsigned NumProtocols) {
+  ID.AddPointer(Decl);
   for (unsigned i = 0; i != NumProtocols; i++)
     ID.AddPointer(protocols[i]);
 }
 
 void ObjCQualifiedInterfaceType::Profile(llvm::FoldingSetNodeID &ID) {
-  Profile(ID, &Protocols[0], getNumProtocols());
+  Profile(ID, getDecl(), &Protocols[0], getNumProtocols());
 }
 
 void ObjCQualifiedIdType::Profile(llvm::FoldingSetNodeID &ID,