diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 15e5f3f..e7dcc20 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -18,6 +18,7 @@
 #include "clang/Driver/Job.h"
 #include "clang/Driver/HostInfo.h"
 #include "clang/Driver/Option.h"
+#include "clang/Driver/Options.h"
 #include "clang/Driver/ToolChain.h"
 #include "clang/Driver/Util.h"