diff --git a/lib/workerholic/starter.rb b/lib/workerholic/starter.rb
index <HASH>..<HASH> 100644
--- a/lib/workerholic/starter.rb
+++ b/lib/workerholic/starter.rb
@@ -11,6 +11,10 @@ module Workerholic
       launch
     end
 
+    def self.kill_memory_tracker_thread
+      @thread.kill
+    end
+
     private
 
     def self.options
@@ -78,10 +82,6 @@ module Workerholic
       StatsStorage.delete_memory_stats
     end
 
-    def self.kill_memory_tracker_thread
-      @thread.kill
-    end
-
     def self.launch
       if options[:processes] && options[:processes] > 1
         begin
make method to kill memory tracker public