Index: clang-doc/tool/ClangDocMain.cpp
===================================================================
--- clang-doc/tool/ClangDocMain.cpp
+++ clang-doc/tool/ClangDocMain.cpp
@@ -31,7 +31,6 @@
 #include "clang/Frontend/FrontendActions.h"
 #include "clang/Tooling/CommonOptionsParser.h"
 #include "clang/Tooling/Execution.h"
-#include "clang/Tooling/StandaloneExecution.h"
 #include "clang/Tooling/Tooling.h"
 #include "llvm/ADT/APFloat.h"
 #include "llvm/Support/CommandLine.h"
@@ -169,6 +168,7 @@
   llvm::sys::PrintStackTraceOnErrorSignal(argv[0]);
   std::error_code OK;
 
+  ExecutorName.setInitialValue("all-TUs");
   auto Exec = clang::tooling::createExecutorFromCommandLineArgs(
       argc, argv, ClangDocCategory);
 
Index: test/clang-doc/single-file-public.cpp
===================================================================
--- test/clang-doc/single-file-public.cpp
+++ test/clang-doc/single-file-public.cpp
@@ -2,7 +2,7 @@
 // RUN: mkdir %t
 // RUN: echo "" > %t/compile_flags.txt
 // RUN: cp "%s" "%t/test.cpp"
-// RUN: clang-doc --doxygen --public -p %t %t/test.cpp -output=%t/docs
+// RUN: clang-doc --doxygen --public --executor=standalone -p %t %t/test.cpp -output=%t/docs
 // RUN: cat %t/docs/Record.yaml | FileCheck %s --check-prefix=CHECK
 // RUN: rm -rf %t
 
Index: test/clang-doc/single-file.cpp
===================================================================
--- test/clang-doc/single-file.cpp
+++ test/clang-doc/single-file.cpp
@@ -2,7 +2,7 @@
 // RUN: mkdir %t
 // RUN: echo "" > %t/compile_flags.txt
 // RUN: cp "%s" "%t/test.cpp"
-// RUN: clang-doc --doxygen -p %t %t/test.cpp -output=%t/docs
+// RUN: clang-doc --doxygen --executor=standalone -p %t %t/test.cpp -output=%t/docs
 // RUN: cat %t/docs/GlobalNamespace.yaml | FileCheck %s --check-prefix=CHECK
 // RUN: rm -rf %t