diff --git a/actionpack/lib/action_controller/middleware_stack.rb b/actionpack/lib/action_controller/middleware_stack.rb
index ee0ae48ac03df38b352b49f444836f54d3b218dc..b739a6d72d6c3b55d3ea058cde303c6686ea32fa 100644
--- a/actionpack/lib/action_controller/middleware_stack.rb
+++ b/actionpack/lib/action_controller/middleware_stack.rb
@@ -67,11 +67,17 @@ def inspect
 
       def build(app)
         if block
-          klass.new(app, *args, &block)
+          klass.new(app, *build_args, &block)
         else
-          klass.new(app, *args)
+          klass.new(app, *build_args)
         end
       end
+
+      private
+
+        def build_args
+          Array(args).map { |arg| arg.respond_to?(:call) ? arg.call : arg }
+        end
     end
 
     def initialize(*args, &block)
diff --git a/actionpack/lib/action_controller/middlewares.rb b/actionpack/lib/action_controller/middlewares.rb
index fd70eca1b1ca7a4abe797508493b082d9289cbc2..371cf6d8f71c630232e3ef5ce6dd341fe9511188 100644
--- a/actionpack/lib/action_controller/middlewares.rb
+++ b/actionpack/lib/action_controller/middlewares.rb
@@ -5,7 +5,7 @@
 use "ActionController::Failsafe"
 
 use lambda { ActionController::Base.session_store },
-  ActionController::Base.session_options
+    lambda { ActionController::Base.session_options }
 
 use "ActionController::RewindableInput"
 use "ActionController::ParamsParser"
diff --git a/actionpack/test/controller/middleware_stack_test.rb b/actionpack/test/controller/middleware_stack_test.rb
index 612a710fa7967a01d2a4618264bd06be5f734dd1..918231013a8e08118b94a5731bdd49754637bc3c 100644
--- a/actionpack/test/controller/middleware_stack_test.rb
+++ b/actionpack/test/controller/middleware_stack_test.rb
@@ -80,4 +80,11 @@ def setup
     end
     assert_equal BazMiddleware, @stack.last.klass
   end
+
+  test "lazy evaluates middleware arguments" do
+    assert_difference "@stack.size" do
+      @stack.use BazMiddleware, lambda { :foo }
+    end
+    assert_equal [:foo], @stack.last.send(:build_args)
+  end
 end