diff --git a/llvm/unittests/Support/LockFileManagerTest.cpp b/llvm/unittests/Support/LockFileManagerTest.cpp
index 91339ff..79f4519 100644
--- a/llvm/unittests/Support/LockFileManagerTest.cpp
+++ b/llvm/unittests/Support/LockFileManagerTest.cpp
@@ -44,6 +44,7 @@
   ASSERT_FALSE(EC);
 }
 
+#if !defined(_WIN32)
 TEST(LockFileManagerTest, LinkLockExists) {
   SmallString<64> TmpDir;
   error_code EC;
@@ -112,5 +113,6 @@
 
   chdir(OrigPath);
 }
+#endif
 
 } // end anonymous namespace