diff --git a/lib/autotuner/heuristic/base.rb b/lib/autotuner/heuristic/base.rb
index 982ce98..e4ae80c 100644
--- a/lib/autotuner/heuristic/base.rb
+++ b/lib/autotuner/heuristic/base.rb
@@ -25,7 +25,7 @@ def name
         raise NotImplementedError
       end
 
-      def call(request_time, before_gc_context, after_gc_context)
+      def call(request_context)
         raise NotImplementedError
       end