diff --git a/src/lang/english.txt b/src/lang/english.txt
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -2466,6 +2466,7 @@ STR_NEWGRF_LIST_MISSING                 
 
 # NewGRF 'it's broken' warnings
 STR_NEWGRF_BROKEN                                               :{WHITE}Behaviour of NewGRF '{0:RAW_STRING}' is likely to cause desyncs and/or crashes.
+STR_NEWGRF_BROKEN_POWERED_WAGON                                 :{WHITE}Wagon '{1:ENGINE}' changed powered-wagon state when not inside a depot.
 STR_NEWGRF_BROKEN_VEHICLE_LENGTH                                :{WHITE}It changes vehicle length for '{1:ENGINE}' when not inside a depot.
 STR_BROKEN_VEHICLE_LENGTH                                       :{WHITE}Train '{VEHICLE}' belonging to '{COMPANY}' has invalid length. It is probably caused by problems with NewGRFs. Game may desync or crash.