From adbbb12701e2f8f63986da3c5c6914f0528b3aed Mon Sep 17 00:00:00 2001
From: Jerry Wester <jerrywester@yahoo.com>
Date: Wed, 14 Dec 2022 18:56:53 -0700
Subject: [PATCH] add unregister signal for defib

---
 code/modules/mod/modules/modules_medical.dm | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/code/modules/mod/modules/modules_medical.dm b/code/modules/mod/modules/modules_medical.dm
index 431c2fbf0c..c7e1510152 100644
--- a/code/modules/mod/modules/modules_medical.dm
+++ b/code/modules/mod/modules/modules_medical.dm
@@ -111,6 +111,10 @@
 	. = ..()
 	RegisterSignal(device, COMSIG_DEFIBRILLATOR_SUCCESS, .proc/on_defib_success)
 
+/obj/item/mod/module/defibrillator/Destroy()
+	UnregisterSignal(device, COMSIG_DEFIBRILLATOR_SUCCESS)
+	. = ..()
+
 /obj/item/mod/module/defibrillator/proc/on_defib_success(obj/item/shockpaddles/source)
 	drain_power(use_power_cost)
 	source.recharge(defib_cooldown)