diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 59196b2..a32c154 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -1115,7 +1115,7 @@ void Clang::AddX86TargetArgs(const ArgList &Args,
       if (getToolChain().getArch() == llvm::Triple::x86_64)
         CPUName = "x86-64";
       else if (getToolChain().getArch() == llvm::Triple::x86)
-        CPUName = "pentium4";
+        CPUName = "i686";
     }
   }