From 7e5504d680c5da254163d0df7dfe6e4d8e719949 Mon Sep 17 00:00:00 2001
From: Erin Dachtler <erin@erindachtler.me>
Date: Thu, 22 Jun 2023 03:32:31 -0700
Subject: [PATCH] fix for #98

---
 cybersyn/scripts/gui.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cybersyn/scripts/gui.lua b/cybersyn/scripts/gui.lua
index 6265a07..c70896a 100644
--- a/cybersyn/scripts/gui.lua
+++ b/cybersyn/scripts/gui.lua
@@ -92,7 +92,7 @@ local function handle_drop_down(e)
 		--prevent the use of the each signal with depots
 		local network = element.parent.parent.bottom.network--[[@as LuaGuiElement]]
 		local signal = network.elem_value--[[@as SignalID]]
-		if signal.name == NETWORK_EACH then
+		if signal and (signal.name == NETWORK_EACH) then
 			network.elem_value = nil
 			set_comb_network_name(comb, nil)
 		end