diff --git a/lib/Target/PowerPC/PPCAsmPrinter.cpp b/lib/Target/PowerPC/PPCAsmPrinter.cpp
index 9a9752c73bc..992446e76f7 100644
--- a/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -192,6 +192,7 @@ namespace {
 
     void printConstantPool(MachineConstantPool *MCP);
     bool runOnMachineFunction(MachineFunction &F);
+    bool doInitialization(Module &M);
     bool doFinalization(Module &M);
   };
 
@@ -426,6 +427,14 @@ void DarwinAsmPrinter::printConstantPool(MachineConstantPool *MCP) {
   }
 }
 
+bool DarwinAsmPrinter::doInitialization(Module &M) {
+  // FIXME: implment subtargets for PowerPC and pick this up from there.
+  O << "\t.machine ppc970\n";
+
+  AsmPrinter::doInitialization(M);
+  return false;
+}
+
 bool DarwinAsmPrinter::doFinalization(Module &M) {
   const TargetData &TD = TM.getTargetData();
   std::string CurSection;