diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index afe26dbf5c1256460e171b2b160fa8fcf81a1a78..745497f9e2de48b4008fb3c0b13f35fb30502135 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -1879,7 +1879,7 @@ static llvm::Triple computeTargetTriple(StringRef DefaultTargetTriple,
     // Handle the Darwin '-arch' flag.
     if (Arg *A = Args.getLastArg(options::OPT_arch)) {
       if (StringRef(A->getValue()) == "x86_64h")
-        Target.setArchName(DarwinArchName);
+        Target.setArchName(A->getValue());
       else {
         llvm::Triple::ArchType DarwinArch
           = tools::darwin::getArchTypeForDarwinArchName(A->getValue());
diff --git a/test/Driver/darwin-ld.c b/test/Driver/darwin-ld.c
index a3f9a7f0cd1896ec393c07178235980c8ca0b86a..1675fe6bb88a3741c19b6d31e4b8c409be5042b1 100644
--- a/test/Driver/darwin-ld.c
+++ b/test/Driver/darwin-ld.c
@@ -148,3 +148,12 @@
 //
 // LINK_X86_64H_ARCH: {{ld(.exe)?"}}
 // LINK_X86_64H_ARCH: "x86_64h"
+
+// RUN: %clang -target x86_64-apple-darwin -arch x86_64 -arch x86_64h -### %t.o 2> %t.log
+// RUN: FileCheck -check-prefix=LINK_X86_64H_MULTIARCH %s < %t.log
+//
+// LINK_X86_64H_MULTIARCH: {{ld(.exe)?"}}
+// LINK_X86_64H_MULTIARCH: "x86_64"
+//
+// LINK_X86_64H_MULTIARCH: {{ld(.exe)?"}}
+// LINK_X86_64H_MULTIARCH: "x86_64h"