diff --git a/lib/server/ai/client.rb b/lib/server/ai/client.rb
index 073f092..8429fcf 100644
--- a/lib/server/ai/client.rb
+++ b/lib/server/ai/client.rb
@@ -102,7 +102,7 @@ def to_h
       # The AIConfig class represents an AI configuration.
       #
       class AIConfig
-        attr_reader :enabled, :messages, :variables, :tracker, :model, :provider
+        attr_reader :enabled, :messages, :tracker, :model, :provider
 
         def initialize(enabled: nil, model: nil, messages: nil, tracker: nil, provider: nil)
           @enabled = enabled