From da544ecbbce2f6cc2a044ee26dedb668cabe0d2a Mon Sep 17 00:00:00 2001
From: SteelSlayer <42044220+SteelSlayer@users.noreply.github.com>
Date: Fri, 19 Nov 2021 09:07:24 -0600
Subject: [PATCH] fax machine fix (#17142)

---
 code/modules/paperwork/faxmachine.dm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/modules/paperwork/faxmachine.dm b/code/modules/paperwork/faxmachine.dm
index 6298a738f34..a7b31e6bb8b 100644
--- a/code/modules/paperwork/faxmachine.dm
+++ b/code/modules/paperwork/faxmachine.dm
@@ -149,7 +149,7 @@ GLOBAL_LIST_EMPTY(fax_blacklist)
 
 
 /obj/machinery/photocopier/faxmachine/ui_act(action, params)
-	if(..())
+	if(!..()) // !..() here because the parent photocopier proc returns null as opposed to TRUE if the ui should not be interacted with.
 		return
 	var/is_authenticated = is_authenticated(usr)
 	. = TRUE