diff --git a/src/terraform_gui.cpp b/src/terraform_gui.cpp
index 203a995b21..5b8e54c021 100644
--- a/src/terraform_gui.cpp
+++ b/src/terraform_gui.cpp
@@ -584,12 +584,12 @@ struct ScenarioEditorLandscapeGenerationWindow : Window {
 				break;
 
 			case WID_ETT_LOWER_LAND: // Lower land button
-				HandlePlacePushButton(this, WID_ETT_LOWER_LAND, ANIMCURSOR_LOWERLAND, HT_POINT);
+				HandlePlacePushButton(this, WID_ETT_LOWER_LAND, ANIMCURSOR_LOWERLAND, HT_POINT | HT_DIAGONAL);
 				this->last_user_action = widget;
 				break;
 
 			case WID_ETT_RAISE_LAND: // Raise land button
-				HandlePlacePushButton(this, WID_ETT_RAISE_LAND, ANIMCURSOR_RAISELAND, HT_POINT);
+				HandlePlacePushButton(this, WID_ETT_RAISE_LAND, ANIMCURSOR_RAISELAND, HT_POINT | HT_DIAGONAL);
 				this->last_user_action = widget;
 				break;