diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 5f4310a..7a18ebf 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -613,7 +613,7 @@
     Res.push_back("-fno-gnu-keywords");
   if (!Opts.GNUMode && Opts.GNUKeywords)
     Res.push_back("-fgnu-keywords");
-  if (Opts.Microsoft)
+  if (Opts.MicrosoftExt)
     Res.push_back("-fms-extensions");
   if (Opts.MSCVersion != 0)
     Res.push_back("-fmsc-version=" + llvm::utostr(Opts.MSCVersion));
@@ -1654,7 +1654,7 @@
                                    OPT_fno_dollars_in_identifiers,
                                    Opts.DollarIdents);
   Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
-  Opts.Microsoft = Args.hasArg(OPT_fms_extensions);
+  Opts.MicrosoftExt = Args.hasArg(OPT_fms_extensions);
   Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility);
   Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags);
   Opts.Borland = Args.hasArg(OPT_fborland_extensions);