diff --git a/include/llvm/MC/MCSubtargetInfo.h b/include/llvm/MC/MCSubtargetInfo.h
index d7076c0cfe3..97d5a7ac3a4 100644
--- a/include/llvm/MC/MCSubtargetInfo.h
+++ b/include/llvm/MC/MCSubtargetInfo.h
@@ -67,7 +67,7 @@ public:
 
   /// setFeatureBits - Set the feature bits.
   ///
-  void setFeatureBits(uint64_t _FeatureBits) { FeatureBits = _FeatureBits; }
+  void setFeatureBits(uint64_t FeatureBits_) { FeatureBits = FeatureBits_; }
 
   /// InitMCProcessorInfo - Set or change the CPU (optionally supplemented with
   /// feature string). Recompute feature bits and scheduling model.