diff --git a/maps/tether/tether_things.dm b/maps/tether/tether_things.dm
index ee55cca310f..a3607799f45 100644
--- a/maps/tether/tether_things.dm
+++ b/maps/tether/tether_things.dm
@@ -88,7 +88,7 @@
 
 // Walking on maglev tracks will shock you! Horray!
 /turf/simulated/floor/maglev/Entered(var/atom/movable/AM, var/atom/old_loc)
-	if(ismob(AM) && prob(50))
+	if(isliving(AM) && prob(50))
 		shock(AM)
 /turf/simulated/floor/maglev/attack_hand(var/mob/user)
 	if(prob(75))