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-rw-r--r--src/settings_gui.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/settings_gui.cpp b/src/settings_gui.cpp
index 576f49db0..e5056457c 100644
--- a/src/settings_gui.cpp
+++ b/src/settings_gui.cpp
@@ -35,6 +35,7 @@
#include "table/sprites.h"
#include "table/strings.h"
+#include <map>
static const StringID _units_dropdown[] = {
STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL,