diff --git a/lib/Frontend/InitHeaderSearch.cpp b/lib/Frontend/InitHeaderSearch.cpp
index 53074e2..d144cbb 100644
--- a/lib/Frontend/InitHeaderSearch.cpp
+++ b/lib/Frontend/InitHeaderSearch.cpp
@@ -475,15 +475,17 @@
     if (HSOpts.UseLibcxx) {
       if (triple.isOSDarwin()) {
         // On Darwin, libc++ may be installed alongside the compiler in
-        // lib/c++/v1.
+        // include/c++/v1.
         if (!HSOpts.ResourceDir.empty()) {
           // Remove version from foo/lib/clang/version
           StringRef NoVer = llvm::sys::path::parent_path(HSOpts.ResourceDir);
           // Remove clang from foo/lib/clang
-          SmallString<128> P = llvm::sys::path::parent_path(NoVer);
-          
-          // Get foo/lib/c++/v1
-          llvm::sys::path::append(P, "c++", "v1");
+          StringRef Lib = llvm::sys::path::parent_path(NoVer);
+          // Remove lib from foo/lib
+          SmallString<128> P = llvm::sys::path::parent_path(Lib);
+
+          // Get foo/include/c++/v1
+          llvm::sys::path::append(P, "include", "c++", "v1");
           AddUnmappedPath(P.str(), CXXSystem, false);
         }
       }