diff --git a/src/clang_tu.cc b/src/clang_tu.cc
index 7a436b21..5042714f 100644
--- a/src/clang_tu.cc
+++ b/src/clang_tu.cc
@@ -12,6 +12,7 @@
 #include <clang/Driver/Driver.h>
 #include <clang/Driver/Tool.h>
 #include <clang/Lex/Lexer.h>
+#include <llvm/Support/Host.h>
 #include <llvm/Support/Path.h>
 
 using namespace clang;
diff --git a/src/indexer.cc b/src/indexer.cc
index 9879eb32..4c7a262c 100644
--- a/src/indexer.cc
+++ b/src/indexer.cc
@@ -10,6 +10,7 @@
 #include "sema_manager.hh"
 
 #include <clang/AST/AST.h>
+#include <clang/Basic/TargetInfo.h>
 #include <clang/Frontend/FrontendAction.h>
 #include <clang/Frontend/MultiplexConsumer.h>
 #include <clang/Index/IndexDataConsumer.h>
diff --git a/src/sema_manager.cc b/src/sema_manager.cc
index 7d5a1cc2..6a228f39 100644
--- a/src/sema_manager.cc
+++ b/src/sema_manager.cc
@@ -9,6 +9,7 @@
 #include "pipeline.hh"
 #include "platform.hh"
 
+#include <clang/Basic/TargetInfo.h>
 #include <clang/Lex/PreprocessorOptions.h>
 #include <clang/Sema/CodeCompleteConsumer.h>
 #include <clang/Sema/Sema.h>