diff --git a/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp b/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
index 28f44cee1d0..6a3ec8fcc48 100644
--- a/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
+++ b/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
@@ -163,6 +163,8 @@ std::string ARM_MC::ParseARMTriple(StringRef TT, StringRef CPU) {
   case Triple::ARMSubArch_v4t:
     ARMArchFeature = "+v4t";
     break;
+  case Triple::NoSubArch:
+    break;
   }
 
   if (isThumb) {