Index: tools/libime_prediction.cpp
--- tools/libime_prediction.cpp.orig
+++ tools/libime_prediction.cpp
@@ -7,6 +7,7 @@
 #include "libime/core/constants.h"
 #include "libime/core/datrie.h"
 #include "libime/core/languagemodel.h"
+#include <array>
 #include <boost/algorithm/string.hpp>
 #include <cmath>
 #include <fcitx-utils/log.h>