diff --git a/src/settings_gui.cpp b/src/settings_gui.cpp
--- a/src/settings_gui.cpp
+++ b/src/settings_gui.cpp
@@ -123,7 +123,7 @@ struct BaseSetTextfileWindow : public Te
 	{
 		if (widget == WID_TF_CAPTION) {
 			SetDParam(0, content_type);
-			SetDParamStr(1, this->baseset->name.c_str());
+			SetDParamStr(1, this->baseset->name);
 		}
 	}
 };
@@ -304,10 +304,10 @@ struct GameOptionsWindow : Window {
 			case WID_GO_LANG_DROPDOWN:         SetDParamStr(0, _current_language->own_name); break;
 			case WID_GO_GUI_ZOOM_DROPDOWN:     SetDParam(0, _gui_zoom_dropdown[_gui_zoom_cfg != ZOOM_LVL_CFG_AUTO ? ZOOM_LVL_OUT_4X - _gui_zoom_cfg + 1 : 0]); break;
 			case WID_GO_FONT_ZOOM_DROPDOWN:    SetDParam(0, _font_zoom_dropdown[_font_zoom_cfg != ZOOM_LVL_CFG_AUTO ? ZOOM_LVL_OUT_4X - _font_zoom_cfg + 1 : 0]); break;
-			case WID_GO_BASE_GRF_DROPDOWN:     SetDParamStr(0, BaseGraphics::GetUsedSet()->name.c_str()); break;
+			case WID_GO_BASE_GRF_DROPDOWN:     SetDParamStr(0, BaseGraphics::GetUsedSet()->name); break;
 			case WID_GO_BASE_GRF_STATUS:       SetDParam(0, BaseGraphics::GetUsedSet()->GetNumInvalid()); break;
-			case WID_GO_BASE_SFX_DROPDOWN:     SetDParamStr(0, BaseSounds::GetUsedSet()->name.c_str()); break;
-			case WID_GO_BASE_MUSIC_DROPDOWN:   SetDParamStr(0, BaseMusic::GetUsedSet()->name.c_str()); break;
+			case WID_GO_BASE_SFX_DROPDOWN:     SetDParamStr(0, BaseSounds::GetUsedSet()->name); break;
+			case WID_GO_BASE_MUSIC_DROPDOWN:   SetDParamStr(0, BaseMusic::GetUsedSet()->name); break;
 			case WID_GO_BASE_MUSIC_STATUS:     SetDParam(0, BaseMusic::GetUsedSet()->GetNumInvalid()); break;
 			case WID_GO_REFRESH_RATE_DROPDOWN: SetDParam(0, _settings_client.gui.refresh_rate); break;
 			case WID_GO_RESOLUTION_DROPDOWN: {