diff --git a/clang-tools-extra/clangd/ExpectedTypes.cpp b/clang-tools-extra/clangd/ExpectedTypes.cpp
--- a/clang-tools-extra/clangd/ExpectedTypes.cpp
+++ b/clang-tools-extra/clangd/ExpectedTypes.cpp
@@ -1,3 +1,11 @@
+//===--- ExpectedTypes.cpp ---------------------------------------*- C++-*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
 #include "ExpectedTypes.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/AST/Type.h"
diff --git a/clang-tools-extra/clangd/index/IndexAction.cpp b/clang-tools-extra/clangd/index/IndexAction.cpp
--- a/clang-tools-extra/clangd/index/IndexAction.cpp
+++ b/clang-tools-extra/clangd/index/IndexAction.cpp
@@ -1,5 +1,12 @@
-#include "IndexAction.h"
+//===--- IndexAction.cpp -----------------------------------------*- C++-*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
 
+#include "IndexAction.h"
 #include "index/SymbolOrigin.h"
 #include "clang/Frontend/CompilerInstance.h"
 #include "clang/Index/IndexDataConsumer.h"
diff --git a/clang-tools-extra/clangd/xpc/framework/ClangdXPC.cpp b/clang-tools-extra/clangd/xpc/framework/ClangdXPC.cpp
--- a/clang-tools-extra/clangd/xpc/framework/ClangdXPC.cpp
+++ b/clang-tools-extra/clangd/xpc/framework/ClangdXPC.cpp
@@ -1,3 +1,10 @@
+//===--- ClangXPC.cpp --------------------------------------------*- C++-*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
 
 /// Returns the bundle identifier of the Clangd XPC service.
 extern "C" const char *clangd_xpc_get_bundle_identifier() {
diff --git a/clang-tools-extra/clangd/xpc/test-client/ClangdXPCTestClient.cpp b/clang-tools-extra/clangd/xpc/test-client/ClangdXPCTestClient.cpp
--- a/clang-tools-extra/clangd/xpc/test-client/ClangdXPCTestClient.cpp
+++ b/clang-tools-extra/clangd/xpc/test-client/ClangdXPCTestClient.cpp
@@ -1,3 +1,11 @@
+//===--- ClangXPCTestClient.cpp ----------------------------------*- C++-*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
 #include "xpc/Conversion.h"
 #include "clang/Basic/LLVM.h"
 #include "llvm/ADT/SmallString.h"