diff --git a/src/settings_type.h b/src/settings_type.h
--- a/src/settings_type.h
+++ b/src/settings_type.h
@@ -98,7 +98,6 @@ struct Patches {
 	bool realistic_acceleration;        ///< realistic acceleration for trains
 	bool wagon_speed_limits;            ///< enable wagon speed limits
 	bool forbid_90_deg;                 ///< forbid trains to make 90 deg turns
-	bool invisible_trees;               ///< don't show trees when buildings are transparent
 	bool no_servicing_if_no_breakdowns; ///< dont send vehicles to depot when breakdowns are disabled
 	bool link_terraform_toolbar;        ///< display terraform toolbar when displaying rail, road, water and airport toolbars
 	bool reverse_scroll;                ///< Right-Click-Scrolling scrolls in the opposite direction