diff --git a/clang/lib/AST/ExprClassification.cpp b/clang/lib/AST/ExprClassification.cpp
index 61bc3e2..c2a35f4 100644
--- a/clang/lib/AST/ExprClassification.cpp
+++ b/clang/lib/AST/ExprClassification.cpp
@@ -134,6 +134,7 @@
     // FIXME: ObjC++0x might have different rules
   case Expr::ObjCIvarRefExprClass:
   case Expr::FunctionParmPackExprClass:
+  case Expr::MSPropertyRefExprClass:
     return Cl::CL_LValue;
 
     // C99 6.5.2.5p5 says that compound literals are lvalues.