diff --git a/clang/lib/Frontend/InitHeaderSearch.cpp b/clang/lib/Frontend/InitHeaderSearch.cpp
index b043dd2..34c01b4 100644
--- a/clang/lib/Frontend/InitHeaderSearch.cpp
+++ b/clang/lib/Frontend/InitHeaderSearch.cpp
@@ -378,6 +378,11 @@
       AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
                                   "arm-apple-darwin10", "v6", "", triple);
       break;
+
+    case llvm::Triple::arm64:
+      AddGnuCPlusPlusIncludePaths("/usr/include/c++/4.2.1",
+                                  "arm64-apple-darwin10", "", "", triple);
+      break;
     }
     return;
   }