diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 131f5e8..19c4c5d 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1305,7 +1305,7 @@
   Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
   Opts.MicrosoftExt
     = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility);
-  Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility);
+  Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
   Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
   Opts.MSCVersion = getLastArgIntValue(Args, OPT_fmsc_version, 0, Diags);
   Opts.Borland = Args.hasArg(OPT_fborland_extensions);