diff --git a/src/table/settings/pathfinding_settings.ini b/src/table/settings/pathfinding_settings.ini
--- a/src/table/settings/pathfinding_settings.ini
+++ b/src/table/settings/pathfinding_settings.ini
@@ -38,7 +38,7 @@ startup  = false
 
 [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