diff --git a/llvm/include/llvm/ADT/Triple.h b/llvm/include/llvm/ADT/Triple.h
--- a/llvm/include/llvm/ADT/Triple.h
+++ b/llvm/include/llvm/ADT/Triple.h
@@ -477,7 +477,7 @@
     return getSubArch() == Triple::ARMSubArch_v7k;
   }
 
-  /// isOSDarwin - Is this a "Darwin" OS (OS X, iOS, or watchOS).
+  /// isOSDarwin - Is this a "Darwin" OS (OS X, iOS, tvOS or watchOS).
   bool isOSDarwin() const {
     return isMacOSX() || isiOS() || isWatchOS();
   }