diff --git a/code/_onclick/item_attack.dm b/code/_onclick/item_attack.dm
index 0c8685162fd4f..a69a3ad42409b 100644
--- a/code/_onclick/item_attack.dm
+++ b/code/_onclick/item_attack.dm
@@ -37,7 +37,7 @@ attacked_by() will handle hitting/missing/logging as it does now, and will call
 	// Knifing
 	if(edge)
 		for(var/obj/item/weapon/grab/G in M.grabbed_by)
-			if(G.assailant == user && G.state >= GRAB_NECK && world.time >= (G.last_action + 20))
+			if(G.assailant == user && G.state >= GRAB_NECK && world.time >= (G.last_action + 20) && user.zone_sel.selecting == "mouth")
 				//TODO: better alternative for applying damage multiple times? Nice knifing sound?
 				M.apply_damage(20, BRUTE, "head", 0, sharp=sharp, edge=edge)
 				M.apply_damage(20, BRUTE, "head", 0, sharp=sharp, edge=edge)