diff --git a/llvm/utils/gn/secondary/clang/unittests/Driver/BUILD.gn b/llvm/utils/gn/secondary/clang/unittests/Driver/BUILD.gn
index b8ec0315e30d..2443a616e302 100644
--- a/llvm/utils/gn/secondary/clang/unittests/Driver/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang/unittests/Driver/BUILD.gn
@@ -11,6 +11,7 @@ unittest("ClangDriverTests") {
     "//llvm/lib/Target:TargetsToBuild",
   ]
   sources = [
+    "DXCModeTest.cpp",
     "DistroTest.cpp",
     "ModuleCacheTest.cpp",
     "MultilibTest.cpp",