diff --git a/src/saveload/map_sl.cpp b/src/saveload/map_sl.cpp
--- a/src/saveload/map_sl.cpp
+++ b/src/saveload/map_sl.cpp
@@ -15,7 +15,6 @@
 #include "../map_func.h"
 #include "../core/bitmath_func.hpp"
 #include "../fios.h"
-#include <array>
 
 #include "../safeguards.h"