diff --git a/exp_legacy/module/modules/gui/research.lua b/exp_legacy/module/modules/gui/research.lua
index 451dec90..11663a22 100644
--- a/exp_legacy/module/modules/gui/research.lua
+++ b/exp_legacy/module/modules/gui/research.lua
@@ -115,7 +115,7 @@ local function research_notification(event)
         end
     end
 
-    if config.limit_res[event.research.name] and event.research.level > config.limit_res[event.research.name] then
+    if config.limit_res[event.research.name] and (event.research.level + 1) >= config.limit_res[event.research.name] then
         event.research.enabled = false
         event.research.visible_when_disabled = false
     end