diff --git a/src/clang_tu.h b/src/clang_tu.h
index d57d9b3a..7d2b4b73 100644
--- a/src/clang_tu.h
+++ b/src/clang_tu.h
@@ -16,8 +16,8 @@ limitations under the License.
 #pragma once
 #include "position.h"
 
-#include <clang/Basic/SourceManager.h>
 #include <clang/Basic/LangOptions.h>
+#include <clang/Basic/SourceManager.h>
 
 #include <stdlib.h>