diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 9f7904dd94b94..a512e5385d532 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -8575,6 +8575,8 @@ def : Separate<["-"], "Xmicrosoft-windows-sdk-root">,
     Alias<_SLASH_winsdkdir>;
 def : Separate<["-"], "Xmicrosoft-windows-sdk-version">,
     Alias<_SLASH_winsdkversion>;
+def : Separate<["-"], "Xmicrosoft-windows-sys-root">,
+    Alias<_SLASH_winsysroot>;
 
 // Ignored: