diff --git a/src/build_vehicle_gui.cpp b/src/build_vehicle_gui.cpp
index ecda60450b..b22218dbe8 100644
--- a/src/build_vehicle_gui.cpp
+++ b/src/build_vehicle_gui.cpp
@@ -145,19 +145,18 @@ static EngineID _last_engine[2] = { INVALID_ENGINE, INVALID_ENGINE };
  */
 static bool EngineNameSorter(const GUIEngineListItem &a, const GUIEngineListItem &b)
 {
-	static char     last_name[2][64] = { "", "" };
+	static std::string last_name[2] = { {}, {} };
 
 	if (a.engine_id != _last_engine[0]) {
 		_last_engine[0] = a.engine_id;
 		SetDParam(0, PackEngineNameDParam(a.engine_id, EngineNameContext::PurchaseList));
-
-		GetString(last_name[0], STR_ENGINE_NAME, lastof(last_name[0]));
+		last_name[0] = GetString(STR_ENGINE_NAME);
 	}
 
 	if (b.engine_id != _last_engine[1]) {
 		_last_engine[1] = b.engine_id;
 		SetDParam(0, PackEngineNameDParam(b.engine_id, EngineNameContext::PurchaseList));
-		GetString(last_name[1], STR_ENGINE_NAME, lastof(last_name[1]));
+		last_name[1] = GetString(STR_ENGINE_NAME);
 	}
 
 	int r = StrNaturalCompare(last_name[0], last_name[1]); // Sort by name (natural sorting).
diff --git a/src/company_gui.cpp b/src/company_gui.cpp
index 23967879fd..6a4d6b457b 100644
--- a/src/company_gui.cpp
+++ b/src/company_gui.cpp
@@ -721,18 +721,18 @@ private:
 
 			/* Sort the groups by their name */
 			const Group *last_group[2] = { nullptr, nullptr };
-			char         last_name[2][64] = { "", "" };
+			std::string last_name[2] = { {}, {} };
 			list.Sort([&](const Group * const &a, const Group * const &b) -> bool {
 				if (a != last_group[0]) {
 					last_group[0] = a;
 					SetDParam(0, a->index);
-					GetString(last_name[0], STR_GROUP_NAME, lastof(last_name[0]));
+					last_name[0] = GetString(STR_GROUP_NAME);
 				}
 
 				if (b != last_group[1]) {
 					last_group[1] = b;
 					SetDParam(0, b->index);
-					GetString(last_name[1], STR_GROUP_NAME, lastof(last_name[1]));
+					last_name[1] = GetString(STR_GROUP_NAME);
 				}
 
 				int r = StrNaturalCompare(last_name[0], last_name[1]); // Sort by name (natural sorting).
diff --git a/src/group_gui.cpp b/src/group_gui.cpp
index d2ddf10b0e..38c719e7e1 100644
--- a/src/group_gui.cpp
+++ b/src/group_gui.cpp
@@ -177,18 +177,18 @@ private:
 
 		/* Sort the groups by their name */
 		const Group *last_group[2] = { nullptr, nullptr };
-		char         last_name[2][64] = { "", "" };
+		std::string last_name[2] = { {}, {} };
 		list.Sort([&](const Group * const &a, const Group * const &b) {
 			if (a != last_group[0]) {
 				last_group[0] = a;
 				SetDParam(0, a->index);
-				GetString(last_name[0], STR_GROUP_NAME, lastof(last_name[0]));
+				last_name[0] = GetString(STR_GROUP_NAME);
 			}
 
 			if (b != last_group[1]) {
 				last_group[1] = b;
 				SetDParam(0, b->index);
-				GetString(last_name[1], STR_GROUP_NAME, lastof(last_name[1]));
+				last_name[1] = GetString(STR_GROUP_NAME);
 			}
 
 			int r = StrNaturalCompare(last_name[0], last_name[1]); // Sort by name (natural sorting).
diff --git a/src/vehicle_gui.cpp b/src/vehicle_gui.cpp
index 240083e211..7e16099f1d 100644
--- a/src/vehicle_gui.cpp
+++ b/src/vehicle_gui.cpp
@@ -1332,18 +1332,18 @@ static bool VehicleNumberSorter(const Vehicle * const &a, const Vehicle * const
 /** Sort vehicles by their name */
 static bool VehicleNameSorter(const Vehicle * const &a, const Vehicle * const &b)
 {
-	static char last_name[2][64];
+	static std::string last_name[2] = { {}, {} };
 
 	if (a != _last_vehicle[0]) {
 		_last_vehicle[0] = a;
 		SetDParam(0, a->index);
-		GetString(last_name[0], STR_VEHICLE_NAME, lastof(last_name[0]));
+		last_name[0] = GetString(STR_VEHICLE_NAME);
 	}
 
 	if (b != _last_vehicle[1]) {
 		_last_vehicle[1] = b;
 		SetDParam(0, b->index);
-		GetString(last_name[1], STR_VEHICLE_NAME, lastof(last_name[1]));
+		last_name[1] = GetString(STR_VEHICLE_NAME);
 	}
 
 	int r = StrNaturalCompare(last_name[0], last_name[1]); // Sort by name (natural sorting).