diff --git a/lib/unicorn/configuration.rb b/lib/unicorn/configuration.rb
new file mode 100644
index 0000000..8f48253
--- /dev/null
+++ b/lib/unicorn/configuration.rb
@@ -0,0 +1,11 @@
+module Unicorn::WorkerKiller
+  class Configuration
+    attr_accessor :max_quit, :max_term, :sleep_interval
+
+    def initialize
+      self.max_quit = 10
+      self.max_term = 15
+      self.sleep_interval = 1
+    end
+  end
+end
diff --git a/lib/unicorn/worker_killer.rb b/lib/unicorn/worker_killer.rb
index 2bec0b0..e55dd28 100644
--- a/lib/unicorn/worker_killer.rb
+++ b/lib/unicorn/worker_killer.rb
@@ -1,3 +1,5 @@
+require 'unicorn/configuration'
+
 module Unicorn::WorkerKiller
   # Self-destruction by sending the signals to myself. The process sometimes
   # doesn't terminate by SIGTERM, so this tries to send SIGQUIT and SIGKILL
@@ -9,16 +11,16 @@ def self.kill_self(logger, start_time)
     while true
       i += 1
       sig = :QUIT
-      if i > 10     # TODO configurable QUIT MAX
+      if i > configuration.max_quit
         sig = :TERM
-      elsif i > 15  # TODO configurable TERM MAX
+      elsif i > configuration.max_term
         sig = :KILL
       end
 
       logger.warn "#{self} send SIGTERM (pid: #{Process.pid}) alive: #{alive_sec} sec (trial #{i})"
       Process.kill sig, Process.pid
 
-      sleep 1  # TODO configurable sleep
+      sleep configuration.sleep_interval
     end
   end
 
@@ -120,4 +122,13 @@ def process_client(client)
       end
     end
   end
+
+  def self.configure
+    self.configuration ||= Configuration.new
+    yield(configuration) if block_given?
+  end
+
+  class << self
+    attr_accessor :configuration
+  end
 end