diff --git a/code/modules/mob/living/carbon/human/inventory.dm b/code/modules/mob/living/carbon/human/inventory.dm
index e5ac5844946..5caedab07dd 100644
--- a/code/modules/mob/living/carbon/human/inventory.dm
+++ b/code/modules/mob/living/carbon/human/inventory.dm
@@ -1026,6 +1026,8 @@ It can still be worn/put on as normal.
 				if(emptyHand)
 					wear_mask.DblClick()
 				return
+			if (!istype(W, /obj/item))
+				return
 			if (!( W.slot_flags & SLOT_MASK ))
 				return
 			u_equip(W)