diff --git a/clang/lib/CodeGen/CGVTables.cpp b/clang/lib/CodeGen/CGVTables.cpp
index 0df2c43..c53e7ed 100644
--- a/clang/lib/CodeGen/CGVTables.cpp
+++ b/clang/lib/CodeGen/CGVTables.cpp
@@ -194,6 +194,7 @@
                                  const CGFunctionInfo &FnInfo) {
   assert(!CurGD.getDecl() && "CurGD was already set!");
   CurGD = GD;
+  CurFuncIsThunk = true;
 
   // Build FunctionArgs.
   const CXXMethodDecl *MD = cast<CXXMethodDecl>(GD.getDecl());