diff --git a/src/strings.cpp b/src/strings.cpp
--- a/src/strings.cpp
+++ b/src/strings.cpp
@@ -1270,8 +1270,8 @@ static char *FormatString(char *buff, co
 				const Company *c = Company::GetIfValid(args->GetInt32());
 				if (c == nullptr) break;
 
-				if (c->name != nullptr) {
-					int64 args_array[] = {(int64)(size_t)c->name};
+				if (!c->name.empty()) {
+					int64 args_array[] = {(int64)(size_t)c->name.c_str()};
 					StringParameters tmp_params(args_array);
 					buff = GetStringWithArgs(buff, STR_JUST_RAW_STRING, &tmp_params, last);
 				} else {
@@ -1305,8 +1305,8 @@ static char *FormatString(char *buff, co
 				}
 
 				const Depot *d = Depot::Get(args->GetInt32());
-				if (d->name != nullptr) {
-					int64 args_array[] = {(int64)(size_t)d->name};
+				if (!d->name.empty()) {
+					int64 args_array[] = {(int64)(size_t)d->name.c_str()};
 					StringParameters tmp_params(args_array);
 					buff = GetStringWithArgs(buff, STR_JUST_RAW_STRING, &tmp_params, last);
 				} else {
@@ -1321,8 +1321,8 @@ static char *FormatString(char *buff, co
 				const Engine *e = Engine::GetIfValid(args->GetInt32(SCC_ENGINE_NAME));
 				if (e == nullptr) break;
 
-				if (e->name != nullptr && e->IsEnabled()) {
-					int64 args_array[] = {(int64)(size_t)e->name};
+				if (!e->name.empty() && e->IsEnabled()) {
+					int64 args_array[] = {(int64)(size_t)e->name.c_str()};
 					StringParameters tmp_params(args_array);
 					buff = GetStringWithArgs(buff, STR_JUST_RAW_STRING, &tmp_params, last);
 				} else {
@@ -1336,8 +1336,8 @@ static char *FormatString(char *buff, co
 				const Group *g = Group::GetIfValid(args->GetInt32());
 				if (g == nullptr) break;
 
-				if (g->name != nullptr) {
-					int64 args_array[] = {(int64)(size_t)g->name};
+				if (!g->name.empty()) {
+					int64 args_array[] = {(int64)(size_t)g->name.c_str()};
 					StringParameters tmp_params(args_array);
 					buff = GetStringWithArgs(buff, STR_JUST_RAW_STRING, &tmp_params, last);
 				} else {
@@ -1373,8 +1373,8 @@ static char *FormatString(char *buff, co
 				const Company *c = Company::GetIfValid(args->GetInt32(SCC_PRESIDENT_NAME));
 				if (c == nullptr) break;
 
-				if (c->president_name != nullptr) {
-					int64 args_array[] = {(int64)(size_t)c->president_name};
+				if (!c->president_name.empty()) {
+					int64 args_array[] = {(int64)(size_t)c->president_name.c_str()};
 					StringParameters tmp_params(args_array);
 					buff = GetStringWithArgs(buff, STR_JUST_RAW_STRING, &tmp_params, last);
 				} else {
@@ -1398,8 +1398,8 @@ static char *FormatString(char *buff, co
 					break;
 				}
 
-				if (st->name != nullptr) {
-					int64 args_array[] = {(int64)(size_t)st->name};
+				if (!st->name.empty()) {
+					int64 args_array[] = {(int64)(size_t)st->name.c_str()};
 					StringParameters tmp_params(args_array);
 					buff = GetStringWithArgs(buff, STR_JUST_RAW_STRING, &tmp_params, last);
 				} else {
@@ -1428,8 +1428,8 @@ static char *FormatString(char *buff, co
 				const Town *t = Town::GetIfValid(args->GetInt32(SCC_TOWN_NAME));
 				if (t == nullptr) break;
 
-				if (t->name != nullptr) {
-					int64 args_array[] = {(int64)(size_t)t->name};
+				if (!t->name.empty()) {
+					int64 args_array[] = {(int64)(size_t)t->name.c_str()};
 					StringParameters tmp_params(args_array);
 					buff = GetStringWithArgs(buff, STR_JUST_RAW_STRING, &tmp_params, last);
 				} else {
@@ -1442,8 +1442,8 @@ static char *FormatString(char *buff, co
 				Waypoint *wp = Waypoint::GetIfValid(args->GetInt32(SCC_WAYPOINT_NAME));
 				if (wp == nullptr) break;
 
-				if (wp->name != nullptr) {
-					int64 args_array[] = {(int64)(size_t)wp->name};
+				if (!wp->name.empty()) {
+					int64 args_array[] = {(int64)(size_t)wp->name.c_str()};
 					StringParameters tmp_params(args_array);
 					buff = GetStringWithArgs(buff, STR_JUST_RAW_STRING, &tmp_params, last);
 				} else {
@@ -1460,8 +1460,8 @@ static char *FormatString(char *buff, co
 				const Vehicle *v = Vehicle::GetIfValid(args->GetInt32(SCC_VEHICLE_NAME));
 				if (v == nullptr) break;
 
-				if (v->name != nullptr) {
-					int64 args_array[] = {(int64)(size_t)v->name};
+				if (!v->name.empty()) {
+					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 {
@@ -1486,8 +1486,8 @@ static char *FormatString(char *buff, co
 				const Sign *si = Sign::GetIfValid(args->GetInt32());
 				if (si == nullptr) break;
 
-				if (si->name != nullptr) {
-					int64 args_array[] = {(int64)(size_t)si->name};
+				if (!si->name.empty()) {
+					int64 args_array[] = {(int64)(size_t)si->name.c_str()};
 					StringParameters tmp_params(args_array);
 					buff = GetStringWithArgs(buff, STR_JUST_RAW_STRING, &tmp_params, last);
 				} else {