diff --git a/src/lang/irish.txt b/src/lang/irish.txt
--- a/src/lang/irish.txt
+++ b/src/lang/irish.txt
@@ -4982,6 +4982,8 @@ STR_ERROR_CAN_T_COPY_ORDER_LIST                                 :{WHITE}Ní féidir liosta orduithe a chóipeáil...
 STR_ERROR_TOO_FAR_FROM_PREVIOUS_DESTINATION                     :{WHITE}... rófhada ón gceann scríbe roimhe seo
 STR_ERROR_AIRCRAFT_NOT_ENOUGH_RANGE                             :{WHITE}... níl raon fada go leor ag an aerárthach
 
+# Extra messages which go on the third line of errors, explaining why orders failed
+
 # Timetable related errors
 STR_ERROR_CAN_T_TIMETABLE_VEHICLE                               :{WHITE}Ní féidir amchlár a thabhairt d'fheithicil...
 STR_ERROR_TIMETABLE_ONLY_WAIT_AT_STATIONS                       :{WHITE}Ní féidir le feithiclí fanacht ach ag stáisiúin.