diff --git a/src/news_gui.cpp b/src/news_gui.cpp
--- a/src/news_gui.cpp
+++ b/src/news_gui.cpp
@@ -1134,7 +1134,7 @@ struct MessageHistoryWindow : Window {
 
 			/* Months are off-by-one, so it's actually 8. Not using
 			 * month 12 because the 1 is usually less wide. */
-			SetDParam(0, TimerGameCalendar::ConvertYMDToDate(ORIGINAL_MAX_YEAR, 7, 30));
+			SetDParam(0, TimerGameCalendar::ConvertYMDToDate(CalendarTime::ORIGINAL_MAX_YEAR, 7, 30));
 			this->date_width = GetStringBoundingBox(STR_JUST_DATE_TINY).width + WidgetDimensions::scaled.hsep_wide;
 
 			size->height = 4 * resize->height + WidgetDimensions::scaled.framerect.Vertical(); // At least 4 lines are visible.