diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index 8c7571f..c0dbbf8 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -187,7 +187,7 @@
 
   /// GetAddrOfConstantCFString - Return a pointer to a constant CFString object
   /// for the given string.
-  llvm::Constant *GetAddrOfConstantCFString(const std::string& str);
+  llvm::Constant *GetAddrOfConstantCFString(const StringLiteral *Literal);
 
   /// GetAddrOfConstantStringFromLiteral - Return a pointer to a constant array
   /// for the given string literal.