diff --git a/llvm/unittests/Support/Path.cpp b/llvm/unittests/Support/Path.cpp
index b2eddd52e68a7..d80edbe19d124 100644
--- a/llvm/unittests/Support/Path.cpp
+++ b/llvm/unittests/Support/Path.cpp
@@ -1185,6 +1185,7 @@ TEST(Support, NormalizePath) {
   Tests.emplace_back("a\\\\b", "a\\\\b", "a\\\\b");
   Tests.emplace_back("\\a", "\\a", "/a");
   Tests.emplace_back("a\\", "a\\", "a/");
+  Tests.emplace_back("a\\t", "a\\t", "a/t");
 
   for (auto &T : Tests) {
     SmallString<64> Win(std::get<0>(T));