diff --git a/llvm/utils/gn/secondary/llvm/unittests/Option/BUILD.gn b/llvm/utils/gn/secondary/llvm/unittests/Option/BUILD.gn
index 48c90bf6347585..13d80ef02ee7a1 100644
--- a/llvm/utils/gn/secondary/llvm/unittests/Option/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/unittests/Option/BUILD.gn
@@ -12,5 +12,8 @@ unittest("OptionTests") {
     "//llvm/lib/Option",
     "//llvm/lib/Support",
   ]
-  sources = [ "OptionParsingTest.cpp" ]
+  sources = [
+    "OptionMarshallingTest.cpp",
+    "OptionParsingTest.cpp",
+  ]
 }