diff --git a/include/llvm/Target/TargetRegisterInfo.h b/include/llvm/Target/TargetRegisterInfo.h
index b62470c8d0a..c75a856bc52 100644
--- a/include/llvm/Target/TargetRegisterInfo.h
+++ b/include/llvm/Target/TargetRegisterInfo.h
@@ -455,7 +455,7 @@ public:
   virtual unsigned getSubReg(unsigned RegNo, unsigned Index) const = 0;
 
   /// getSubRegIndex - For a given register pair, return the sub-register index
-  /// if the are second register is a sub-register of the first. Return zero
+  /// if the second register is a sub-register of the first. Return zero
   /// otherwise.
   virtual unsigned getSubRegIndex(unsigned RegNo, unsigned SubRegNo) const = 0;