diff --git a/src/road_gui.cpp b/src/road_gui.cpp
index 1d176534cb..bf4ef40d17 100644
--- a/src/road_gui.cpp
+++ b/src/road_gui.cpp
@@ -957,7 +957,7 @@ struct BuildRoadStationWindow : public PickerWindowBase {
 	{
 		this->DrawWidgets();
 
-		int rad = _settings_game.station.modified_catchment ? CA_TRUCK /* = CA_BUS */ : CA_UNMODIFIED;
+		int rad = _settings_game.station.modified_catchment ? ((this->window_class == WC_BUS_STATION) ? CA_BUS : CA_TRUCK) : CA_UNMODIFIED;
 		if (_settings_client.gui.station_show_coverage) {
 			SetTileSelectBigSize(-rad, -rad, 2 * rad, 2 * rad);
 		} else {