diff --git a/src/clang_tu.cc b/src/clang_tu.cc
index 224e885c..6c679101 100644
--- a/src/clang_tu.cc
+++ b/src/clang_tu.cc
@@ -8,6 +8,7 @@
 
 #include <clang/AST/Type.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 b491fcfa..d788aaf1 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/Index/IndexDataConsumer.h>
 #include <clang/Index/IndexingAction.h>
diff --git a/src/sema_manager.cc b/src/sema_manager.cc
index 0eaf44ca..f4326722 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>