diff --git a/clang/unittests/Tooling/ToolingTest.cpp b/clang/unittests/Tooling/ToolingTest.cpp
index efabaf7f9949..9122786b5535 100644
--- a/clang/unittests/Tooling/ToolingTest.cpp
+++ b/clang/unittests/Tooling/ToolingTest.cpp
@@ -110,9 +110,6 @@ TEST(newFrontendActionFactory, CreatesFrontendActionFactoryFromFactoryType) {
   EXPECT_TRUE(Action.get() != NULL);
 }
 
-#ifndef LLVM_ON_WIN32
-// This test breaks on Windows.
-
 TEST(ToolInvocation, TestMapVirtualFile) {
   clang::FileManager Files((clang::FileSystemOptions()));
   std::vector<std::string> Args;
@@ -126,7 +123,5 @@ TEST(ToolInvocation, TestMapVirtualFile) {
   EXPECT_TRUE(Invocation.run());
 }
 
-#endif
-
 } // end namespace tooling
 } // end namespace clang