diff --git a/llvm/utils/gn/secondary/clang-tools-extra/unittests/clang-tidy/BUILD.gn b/llvm/utils/gn/secondary/clang-tools-extra/unittests/clang-tidy/BUILD.gn
index ad44b01c5d2f4a..935c2aab228206 100644
--- a/llvm/utils/gn/secondary/clang-tools-extra/unittests/clang-tidy/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang-tools-extra/unittests/clang-tidy/BUILD.gn
@@ -20,6 +20,7 @@ unittest("ClangTidyTests") {
     "//clang/lib/Tooling/Core",
     "//clang/lib/Tooling/Transformer",
     "//llvm/lib/Support",
+    "//llvm/lib/Testing/Support",
   ]
   include_dirs = [ "//clang-tools-extra/clang-tidy" ]
   sources = [