diff --git a/code/controllers/subsystem/SSticker.dm b/code/controllers/subsystem/SSticker.dm
index e641ed030c4..273bc5b2238 100644
--- a/code/controllers/subsystem/SSticker.dm
+++ b/code/controllers/subsystem/SSticker.dm
@@ -141,6 +141,8 @@ SUBSYSTEM_DEF(ticker)
 				var/list/pickable_types = list()
 				for(var/x in subtypesof(/datum/map))
 					var/datum/map/M = x
+					if(istype(SSmapping.map_datum, M)) // Random will never choose the same map twice in a row.
+						continue
 					if(initial(M.voteable) && length(GLOB.clients) >= initial(M.min_players_random))
 						pickable_types += M