diff --git a/tools/llvm-objdump/MachODump.cpp b/tools/llvm-objdump/MachODump.cpp
index d1e7d69..89847d0 100644
--- a/tools/llvm-objdump/MachODump.cpp
+++ b/tools/llvm-objdump/MachODump.cpp
@@ -56,23 +56,7 @@
   // Figure out the target triple.
   if (TripleName.empty()) {
     llvm::Triple TT("unknown-unknown-unknown");
-    switch (MachOObj->getHeader()->CPUType) {
-    case llvm::MachO::CPUTypeI386:
-      TT.setArch(Triple::ArchType(Triple::x86));
-      break;
-    case llvm::MachO::CPUTypeX86_64:
-      TT.setArch(Triple::ArchType(Triple::x86_64));
-      break;
-    case llvm::MachO::CPUTypeARM:
-      TT.setArch(Triple::ArchType(Triple::arm));
-      break;
-    case llvm::MachO::CPUTypePowerPC:
-      TT.setArch(Triple::ArchType(Triple::ppc));
-      break;
-    case llvm::MachO::CPUTypePowerPC64:
-      TT.setArch(Triple::ArchType(Triple::ppc64));
-      break;
-    }
+    TT.setArch(Triple::ArchType(MachOObj->getArch()));
     TripleName = TT.str();
   }