diff --git a/src/lang/english.txt b/src/lang/english.txt
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -3030,6 +3030,7 @@ STR_VEH_WITH_SHARED_ORDERS_LIST_TIP     
 
 ### depot strings
 STR_DEPOT_SELL_CONFIRMATION_TEXT                                :{YELLOW}You are about to sell all the vehicles in the depot. Are you sure?
+STR_DEPOT_WRONG_DEPOT_TYPE                                      :Wrong depot type
 
 STR_DEPOT_SELL_ALL_BUTTON_TRAIN_TIP                             :{BLACK}Sell all trains in the depot
 STR_DEPOT_SELL_ALL_BUTTON_ROADVEH_TIP                           :{BLACK}Sell all road vehicles in the depot