diff --git a/src/landscape.cpp b/src/landscape.cpp
--- a/src/landscape.cpp
+++ b/src/landscape.cpp
@@ -609,8 +609,7 @@ byte GetSnowLine()
 {
 	if (_snow_line == nullptr) return _settings_game.game_creation.snow_line_height;
 
-	TimerGameCalendar::YearMonthDay ymd;
-	TimerGameCalendar::ConvertDateToYMD(TimerGameCalendar::date, &ymd);
+	TimerGameCalendar::YearMonthDay ymd = TimerGameCalendar::ConvertDateToYMD(TimerGameCalendar::date);
 	return _snow_line->table[ymd.month][ymd.day];
 }