diff --git a/include/llvm/Constants.h b/include/llvm/Constants.h
index 63e35385e35..0663d60bfd7 100644
--- a/include/llvm/Constants.h
+++ b/include/llvm/Constants.h
@@ -558,7 +558,7 @@ public:
   }
 
   /// getSizeOf constant expr - computes the size of a type in a target
-  /// independent way (Note: the return type UInt but the object is is not
+  /// independent way (Note: the return type is UInt but the object is not
   /// necessarily a ConstantUInt).
   ///
   static Constant *getSizeOf(const Type *Ty);