diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index bbf860aa491e1..7a454acb13a65 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -8597,6 +8597,8 @@ 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: