diff --git a/src/lang/estonian.txt b/src/lang/estonian.txt
--- a/src/lang/estonian.txt
+++ b/src/lang/estonian.txt
@@ -322,6 +322,7 @@ STR_012A_DESERT                                                 :{BLACK}{TINYFONT}Kõrb
 STR_012B_SNOW                                                   :{BLACK}{TINYFONT}Lumi
 STR_012C_MESSAGE                                                :{WHITE}Teade
 STR_012D                                                        :{WHITE}{STRING}
+STR_DEFAULT                                                     :{BLACK}Vaikimisi
 STR_012E_CANCEL                                                 :{BLACK}Tühista
 STR_012F_OK                                                     :{BLACK}OK
 STR_0130_RENAME                                                 :{BLACK}Nimevahetus
@@ -2845,6 +2846,7 @@ STR_HEADING_FOR_TRAIN_DEPOT_SERVICE_VEL 
 
 STR_INVALID_ORDER                                               :{RED} (Ebasobiv järjekord)
 
+STR_UNKNOWN_STATION                                             :tundmatu jaam
 STR_8812_EMPTY                                                  :{LTBLUE}Tühi
 STR_8813_FROM                                                   :{LTBLUE}{CARGO} jaamast {STATION}
 STR_FROM_MULT                                                   :{LTBLUE}{CARGO} jaamast {STATION} (x{NUM})