From ec5e590a29c0cfefcff3e6c638baf567bdcd434e Mon Sep 17 00:00:00 2001
From: Simon Brodtmann <github@accounts.brodtmann.info>
Date: Fri, 17 Oct 2025 11:48:50 +0200
Subject: [PATCH] Fix prerequisite for rich-water-filtration when 248k and
 silicon are active but bzgas is not

---
 ChemistryForYou2/prototypes/technology.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ChemistryForYou2/prototypes/technology.lua b/ChemistryForYou2/prototypes/technology.lua
index 2de969f..b37edb3 100644
--- a/ChemistryForYou2/prototypes/technology.lua
+++ b/ChemistryForYou2/prototypes/technology.lua
@@ -21,7 +21,7 @@ if mods["bztin"] then
   saltpeterPrerequ =  {"organic-chemistry"}
 end
 
-if mods["bzsilicon"] then
+if mods["bzgas"] and mods["bzsilicon"] then
   rich_water_filtration_pre = {"water-filtration"}
 end