diff --git a/lld/MinGW/Options.td b/lld/MinGW/Options.td
--- a/lld/MinGW/Options.td
+++ b/lld/MinGW/Options.td
@@ -125,6 +125,7 @@
 def: F<"high-entropy-va">;
 def: S<"major-image-version">;
 def: S<"minor-image-version">;
+def: F<"no-undefined">;
 def: F<"nxcompat">;
 def: F<"pic-executable">;
 def: S<"plugin">;