diff --git a/_maps/map_files/vonneumann/vnmk3.dmm b/_maps/map_files/vonneumann/vnmk3.dmm
index 8721ddb8178..e7974bc1384 100644
--- a/_maps/map_files/vonneumann/vnmk3.dmm
+++ b/_maps/map_files/vonneumann/vnmk3.dmm
@@ -3977,7 +3977,6 @@
 	dir = 10
 	},
 /obj/structure/lattice,
-/obj/structure/lattice,
 /turf/open/space/basic,
 /area/space/nearstation)
 "jE" = (