diff --git a/src/train_cmd.cpp b/src/train_cmd.cpp
--- a/src/train_cmd.cpp
+++ b/src/train_cmd.cpp
@@ -4179,7 +4179,7 @@ void Train::OnNewDay()
 
 		if (this->running_ticks != 0) {
 			/* running costs */
-			CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR  * Ticks::DAY_TICKS));
+			CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (CalendarTime::DAYS_IN_YEAR  * Ticks::DAY_TICKS));
 
 			this->profit_this_year -= cost.GetCost();
 			this->running_ticks = 0;