diff --git a/code/game/objects/items/weapons/handcuffs.dm b/code/game/objects/items/weapons/handcuffs.dm
index 060298974bd..3a490994173 100644
--- a/code/game/objects/items/weapons/handcuffs.dm
+++ b/code/game/objects/items/weapons/handcuffs.dm
@@ -88,6 +88,7 @@ var/last_chew = 0
 	if (!H.handcuffed) return
 	if (H.a_intent != I_HURT) return
 	if (H.zone_sel.selecting != "mouth") return
+	if (!H.check_has_mouth()) return
 	if (H.wear_mask) return
 	if (istype(H.wear_suit, /obj/item/clothing/suit/straight_jacket)) return
 
@@ -167,4 +168,4 @@ var/last_chew = 0
 	icon = 'icons/obj/items.dmi'
 	icon_state = "ziptie"
 	breakouttime = 600
-	cuff_sound = 'sound/weapons/cablecuff.ogg'
\ No newline at end of file
+	cuff_sound = 'sound/weapons/cablecuff.ogg'