diff --git a/llvm/lib/Target/X86/X86TargetMachine.h b/llvm/lib/Target/X86/X86TargetMachine.h
index 065fd368a214..029f834027b0 100644
--- a/llvm/lib/Target/X86/X86TargetMachine.h
+++ b/llvm/lib/Target/X86/X86TargetMachine.h
@@ -15,7 +15,7 @@ class X86TargetMachine : public TargetMachine {
 public:
   X86TargetMachine();
 
-  virtual const MachineInstrInfo &getInstrInfo() const { return instrInfo; }
+  virtual const X86InstrInfo     &getInstrInfo() const { return instrInfo; }
   virtual const MachineSchedInfo &getSchedInfo() const { abort(); }
   virtual const MachineRegInfo   &getRegInfo()   const { abort(); }
   virtual const MachineFrameInfo &getFrameInfo() const { abort(); }