diff --git a/lib/Driver/FrontendUtil.cpp b/lib/Driver/FrontendUtil.cpp
index b0c0b7f47af72..bd1414bdf3ba2 100644
--- a/lib/Driver/FrontendUtil.cpp
+++ b/lib/Driver/FrontendUtil.cpp
@@ -31,11 +31,8 @@ void swift::driver::ExpandResponseFilesWithRetry(llvm::StringSaver &Saver,
                                 llvm::SmallVectorImpl<const char *> &Args) {
   const unsigned MAX_COUNT = 30;
   for (unsigned I = 0; I != MAX_COUNT; ++I) {
-    if (llvm::cl::ExpandResponseFiles(Saver,
-        llvm::Triple(llvm::sys::getProcessTriple()).isOSWindows()
-          ? llvm::cl::TokenizeWindowsCommandLine
-          : llvm::cl::TokenizeGNUCommandLine,
-        Args)) {
+    if (llvm::cl::ExpandResponseFiles(Saver, llvm::cl::TokenizeGNUCommandLine,
+                                      Args)) {
       return;
     }
   }