diff --git a/src/strings.cpp b/src/strings.cpp
--- a/src/strings.cpp
+++ b/src/strings.cpp
@@ -1467,6 +1467,11 @@ static char *FormatString(char *buff, co
 					int64 args_array[] = {(int64)(size_t)v->name.c_str()};
 					StringParameters tmp_params(args_array);
 					buff = GetStringWithArgs(buff, STR_JUST_RAW_STRING, &tmp_params, last);
+				} else if (v->group_id != DEFAULT_GROUP) {
+					/* The vehicle has no name, but is member of a group, so print group name */
+					int64 args_array[] = {v->group_id, v->unitnumber};
+					StringParameters tmp_params(args_array);
+					buff = GetStringWithArgs(buff, STR_FORMAT_GROUP_VEHICLE_NAME, &tmp_params, last);
 				} else {
 					int64 args_array[] = {v->unitnumber};
 					StringParameters tmp_params(args_array);