diff --git a/_maps/map_files/Delta/delta.dmm b/_maps/map_files/Delta/delta.dmm
index a18c7cb8b4f..70287544543 100644
--- a/_maps/map_files/Delta/delta.dmm
+++ b/_maps/map_files/Delta/delta.dmm
@@ -29140,6 +29140,7 @@
 	c_tag = "Vault";
 	dir = 4
 	},
+/mob/living/simple_animal/mouse/brown/Tom,
 /turf/simulated/floor/plasteel/dark,
 /area/security/nuke_storage)
 "bws" = (