diff --git a/src/windows/map.c b/src/windows/map.c
index 2efeb2caf7..2a02256038 100644
--- a/src/windows/map.c
+++ b/src/windows/map.c
@@ -369,14 +369,17 @@ static void window_map_mouseup()
 */
 static void window_map_mousedown(int widgetIndex, rct_window*w, rct_widget* widget)
 {
-	// The normal map window doesn't have widget 8 or 9.
-	// I assume these widgets refer to the Scenario Editor's map window.
-	if (widgetIndex == 8) {
+	// These widgets all refer to the Scenario Editor's map window.
+	if (widgetIndex == WIDX_MAP_SIZE_SPINNER_UP) {
 		RCT2_CALLPROC_X(0x0068D641, 0, 0, 0, widgetIndex, (int)w, 0, 0);
 	}
-	else if (widgetIndex == 9) {
+	else if (widgetIndex == WIDX_MAP_SIZE_SPINNER_DOWN) {
 		RCT2_CALLPROC_X(0x0068D6B4, 0, 0, 0, widgetIndex, (int)w, 0, 0);
 	}
+	else if (widgetIndex == WIDX_SET_LAND_RIGHTS)
+	{
+		RCT2_GLOBAL(RCT2_ADDRESS_LAND_TOOL_SIZE, sint16) = 1;
+	}
 }
 
 /**