diff --git a/utils/gn/secondary/clang-tools-extra/clangd/unittests/BUILD.gn b/utils/gn/secondary/clang-tools-extra/clangd/unittests/BUILD.gn
index b45aa8d44dc..dfd320164fe 100644
--- a/utils/gn/secondary/clang-tools-extra/clangd/unittests/BUILD.gn
+++ b/utils/gn/secondary/clang-tools-extra/clangd/unittests/BUILD.gn
@@ -63,6 +63,7 @@ unittest("ClangdTests") {
     "IndexTests.cpp",
     "JSONTransportTests.cpp",
     "LSPClient.cpp",
+    "ModulesTests.cpp",
     "ParsedASTTests.cpp",
     "PathMappingTests.cpp",
     "PreambleTests.cpp",