diff --git a/llvm/utils/gn/secondary/clang-tools-extra/clangd/support/BUILD.gn b/llvm/utils/gn/secondary/clang-tools-extra/clangd/support/BUILD.gn
index e963847d926d..0bad7dbb617f 100644
--- a/llvm/utils/gn/secondary/clang-tools-extra/clangd/support/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang-tools-extra/clangd/support/BUILD.gn
@@ -17,6 +17,7 @@ static_library("support") {
     "MemoryTree.cpp",
     "Path.cpp",
     "Shutdown.cpp",
+    "ThreadCrashReporter.cpp",
     "Threading.cpp",
     "ThreadsafeFS.cpp",
     "Trace.cpp",
diff --git a/llvm/utils/gn/secondary/clang-tools-extra/clangd/unittests/BUILD.gn b/llvm/utils/gn/secondary/clang-tools-extra/clangd/unittests/BUILD.gn
index 24bade76dc10..7f37a360efeb 100644
--- a/llvm/utils/gn/secondary/clang-tools-extra/clangd/unittests/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang-tools-extra/clangd/unittests/BUILD.gn
@@ -106,6 +106,7 @@ unittest("ClangdTests") {
     "TestIndex.cpp",
     "TestTU.cpp",
     "TestWorkspace.cpp",
+    "ThreadCrashReporterTests.cpp",
     "TidyProviderTests.cpp",
     "TypeHierarchyTests.cpp",
     "URITests.cpp",