diff --git a/exp_scenario/module/commands/research.lua b/exp_scenario/module/commands/research.lua
index fd9dffbf..a86aaf13 100644
--- a/exp_scenario/module/commands/research.lua
+++ b/exp_scenario/module/commands/research.lua
@@ -19,23 +19,25 @@ Storage.register(research, function(tbl)
     research = tbl
 end)
 
+local mod_set = "base"
+
 for _, mod_name in ipairs(config.mod_set_lookup) do
     if script.active_mods[mod_name] then
-        config.mod_set = mod_name
+        mod_set = mod_name
         break
     end
 end
 
 if script.active_mods["space-age"] and script.active_mods["PHI-CL"] and settings.startup["PHI-VP"] and settings.startup["PHI-VP-MAIN"] then
-    config.mod_set = "space-age"
+    mod_set = "space-age"
 end
 
 --- @param force LuaForce
 --- @param silent boolean True when no message should be printed
 function module.res_queue(force, silent)
     local res_q = force.research_queue
-    game.print(config.bonus_inventory.res[config.mod_set].name)
-    local res = force.technologies[config.bonus_inventory.res[config.mod_set].name]
+    game.print(config.bonus_inventory.res[mod_set].name)
+    local res = force.technologies[config.bonus_inventory.res[mod_set].name]
 
     if #res_q < config.queue_amount then
         for i = #res_q, config.queue_amount - 1 do