diff --git a/code/game/objects/structures/railings.dm b/code/game/objects/structures/railings.dm
index c03921db25a..a5271b3ac33 100644
--- a/code/game/objects/structures/railings.dm
+++ b/code/game/objects/structures/railings.dm
@@ -81,7 +81,7 @@
 		return TRUE
 	if(ismob(mover))
 		var/mob/living/M = mover
-		if(M.flying || (IS_HORIZONTAL(M) && HAS_TRAIT(M, TRAIT_CONTORTED_BODY)))
+		if(M.flying || (istype(M) && IS_HORIZONTAL(M) && HAS_TRAIT(M, TRAIT_CONTORTED_BODY)))
 			return TRUE
 	if(mover.throwing)
 		return TRUE