diff --git a/src/terraform_gui.cpp b/src/terraform_gui.cpp
index 1ab014c89b..dc720706de 100644
--- a/src/terraform_gui.cpp
+++ b/src/terraform_gui.cpp
@@ -739,9 +739,6 @@ struct ScenarioEditorLandscapeGenerationWindow : Window {
 	{
 		this->RaiseButtons();
 		this->SetDirty();
-		DeleteWindowById(WC_BUILD_OBJECT, 0);
-		DeleteWindowById(WC_BUILD_HOUSE, 0);
-		DeleteWindowById(WC_SELECT_STATION, 0);
 	}
 
 	static HotkeyList hotkeys;