diff --git a/code/modules/tgui/modules/appearance_changer.dm b/code/modules/tgui/modules/appearance_changer.dm
index 49276d2c7c0..03af983836c 100644
--- a/code/modules/tgui/modules/appearance_changer.dm
+++ b/code/modules/tgui/modules/appearance_changer.dm
@@ -66,8 +66,8 @@
 
 /datum/tgui_module/appearance_changer/tgui_close()
 	. = ..()
-	owner = null
 	UnregisterSignal(owner, COMSIG_OBSERVER_MOVED)
+	owner = null
 
 /datum/tgui_module/appearance_changer/Destroy()
 	last_camera_turf = null