diff --git a/src/lang/latvian.txt b/src/lang/latvian.txt
index 49a5b8b7c0..9e0b5c12ea 100644
--- a/src/lang/latvian.txt
+++ b/src/lang/latvian.txt
@@ -2740,6 +2740,7 @@ STR_NEWGRF_SETTINGS_MOVEUP                                      :{BLACK}Uz augš
 STR_NEWGRF_SETTINGS_MOVEUP_TOOLTIP                              :{BLACK}Pārvietot atlasīto NewGRF failu saraksta augšā
 STR_NEWGRF_SETTINGS_MOVEDOWN                                    :{BLACK}Uz leju
 STR_NEWGRF_SETTINGS_MOVEDOWN_TOOLTIP                            :{BLACK}Pārvietot atlasīto NewGRF failu saraksta apakšā
+STR_NEWGRF_SETTINGS_UPGRADE                                     :{BLACK}Atjaunināt
 STR_NEWGRF_SETTINGS_FILE_TOOLTIP                                :{BLACK}Instalēto NewGRF failu saraksts.
 
 STR_NEWGRF_SETTINGS_SET_PARAMETERS                              :{BLACK}Iestatīt parametrus