diff --git a/src/lang/english_US.txt b/src/lang/english_US.txt
index 5ace51c28b..cfb6643249 100644
--- a/src/lang/english_US.txt
+++ b/src/lang/english_US.txt
@@ -3895,6 +3895,7 @@ STR_COMPANY_VIEW_CAPTION                                        :{WHITE}{COMPANY
 STR_COMPANY_VIEW_PRESIDENT_MANAGER_TITLE                        :{WHITE}{PRESIDENT_NAME}{}{GOLD}(President)
 
 STR_COMPANY_VIEW_INAUGURATED_TITLE                              :{GOLD}Inaugurated: {WHITE}{NUM}
+STR_COMPANY_VIEW_INAUGURATED_TITLE_WALLCLOCK                    :{GOLD}Inaugurated: {WHITE}{NUM} (period {NUM})
 STR_COMPANY_VIEW_COLOUR_SCHEME_TITLE                            :{GOLD}Color Scheme:
 STR_COMPANY_VIEW_VEHICLES_TITLE                                 :{GOLD}Vehicles:
 STR_COMPANY_VIEW_TRAINS                                         :{WHITE}{COMMA} train{P "" s}