diff --git a/src/Common/Arena.h b/src/Common/Arena.h
index aaf71cac5252c9f92d051f4eecf6d9eb3e1af8b5..44a9b444ff232c486fc150268e3021bee4e51e6f 100644
--- a/src/Common/Arena.h
+++ b/src/Common/Arena.h
@@ -4,10 +4,10 @@
 #include <memory>
 #include <vector>
 #include <boost/noncopyable.hpp>
+#include <Core/Defines.h>
 #if __has_include(<sanitizer/asan_interface.h>) && defined(ADDRESS_SANITIZER)
 #   include <sanitizer/asan_interface.h>
 #endif
-#include <Core/Defines.h>
 #include <Common/memcpySmall.h>
 #include <Common/ProfileEvents.h>
 #include <Common/Allocator.h>
diff --git a/src/Common/ArenaWithFreeLists.h b/src/Common/ArenaWithFreeLists.h
index 3ae727fdaa598ca3fcc7ebba342b69045a6e133d..1284c3586c0acdcda9287fa397bffb1fa8291275 100644
--- a/src/Common/ArenaWithFreeLists.h
+++ b/src/Common/ArenaWithFreeLists.h
@@ -1,9 +1,9 @@
 #pragma once
 
+#include <Core/Defines.h>
 #if __has_include(<sanitizer/asan_interface.h>) && defined(ADDRESS_SANITIZER)
 #   include <sanitizer/asan_interface.h>
 #endif
-#include <Core/Defines.h>
 #include <Common/Arena.h>
 #include <Common/BitHelpers.h>