diff --git a/src/table/settings/settings.ini b/src/table/settings/settings.ini
index 954f495839e..c480dfc9b4f 100644
--- a/src/table/settings/settings.ini
+++ b/src/table/settings/settings.ini
@@ -1497,10 +1497,9 @@ patxname = ""vehicle.rail_depot_speed_limit""
 
 [SDT_BOOL]
 var      = pf.forbid_90_deg
-def      = false
+def      = true
 str      = STR_CONFIG_SETTING_FORBID_90_DEG
 strhelp  = STR_CONFIG_SETTING_FORBID_90_DEG_HELPTEXT
-post_cb  = InvalidateShipPathCache
 cat      = SC_EXPERT
 
 [SDT_XREF]