diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 0716879..859e8ba 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1882,7 +1882,7 @@
   Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
                                   Opts.GNUKeywords);
 
-  if (Args.hasArg(OPT_fno_operator_names) || Args.hasArg(OPT_fms_compatibility))
+  if (Args.hasArg(OPT_fno_operator_names))
     Opts.CXXOperatorNames = 0;
 
   if (Args.hasArg(OPT_fcuda_is_device))