diff --git a/js/tiletypes.js b/js/tiletypes.js
index 4912354..842c94b 100644
--- a/js/tiletypes.js
+++ b/js/tiletypes.js
@@ -2032,6 +2032,8 @@ const TILE_TYPES = {
             'bomb',
             'ice', 'ice_nw', 'ice_ne', 'ice_sw', 'ice_se',
             'force_floor_n', 'force_floor_s', 'force_floor_e', 'force_floor_w', 'force_floor_all',
+            // Ghosts don't activate swivels
+            'swivel_nw', 'swivel_ne', 'swivel_se', 'swivel_sw',
         ]),
         movement_speed: 4,
         // TODO ignores /most/ walls.  collision is basically completely different.  has a regular inventory, except red key.  good grief