diff --git a/code/modules/mob/living/silicon/robot/robot.dm b/code/modules/mob/living/silicon/robot/robot.dm
index a789a68a2ba..29cf43eba40 100644
--- a/code/modules/mob/living/silicon/robot/robot.dm
+++ b/code/modules/mob/living/silicon/robot/robot.dm
@@ -852,7 +852,8 @@
 
 	if (href_list["mod"])
 		var/obj/item/O = locate(href_list["mod"])
-		O.attack_self(src)
+		if (O)
+			O.attack_self(src)
 
 	if (href_list["act"])
 		var/obj/item/O = locate(href_list["act"])