diff --git a/src/lang/portuguese.txt b/src/lang/portuguese.txt
--- a/src/lang/portuguese.txt
+++ b/src/lang/portuguese.txt
@@ -2892,6 +2892,7 @@ STR_NEWGRF_INVALID_ENGINE                                       :<modelo de veículo inválido>
 STR_NEWGRF_INVALID_INDUSTRYTYPE                                 :<indústria inválida>
 
 # Placeholders for other invalid stuff, e.g. vehicles that have gone (Game Script).
+STR_INVALID_VEHICLE                                             :<veiculo inválido>
 
 # NewGRF scanning window
 STR_NEWGRF_SCAN_CAPTION                                         :{WHITE}Procurar NewGRFs