diff --git a/code/modules/projectiles/projectile/bullets/rifle.dm b/code/modules/projectiles/projectile/bullets/rifle.dm
index db9d4b55d81..96edd9898c2 100644
--- a/code/modules/projectiles/projectile/bullets/rifle.dm
+++ b/code/modules/projectiles/projectile/bullets/rifle.dm
@@ -1100,8 +1100,8 @@
 
 /obj/item/projectile/bullet/c4570/knockback/on_hit(atom/target, blocked = FALSE)
 	. = ..()
-	if(ismovable(target) && prob(50))
-		var/atom/movable/M = target
+	if(isliving(target) && prob(50))
+		var/mob/living/M = target
 		var/atom/throw_target = get_edge_target_turf(M, get_dir(src, get_step_away(M, src)))
 		M.safe_throw_at(throw_target, 2, 3)