diff --git a/actionpack/lib/action_controller/cgi_ext/cookie.rb b/actionpack/lib/action_controller/cgi_ext/cookie.rb
index e35bab5f5a7f7..a244e2a39ab64 100644
--- a/actionpack/lib/action_controller/cgi_ext/cookie.rb
+++ b/actionpack/lib/action_controller/cgi_ext/cookie.rb
@@ -37,7 +37,7 @@ def initialize(name = '', *value)
         @path = nil
       else
         @name = name['name']
-        @value = name['value'].kind_of?(String) ? [name['value']] : Array(name['value'])
+        @value = (name['value'].kind_of?(String) ? [name['value']] : Array(name['value'])).delete_if(&:blank?)
         @domain = name['domain']
         @expires = name['expires']
         @secure = name['secure'] || false
diff --git a/actionpack/test/controller/cookie_test.rb b/actionpack/test/controller/cookie_test.rb
index b8f3c629f4777..b45fbb17d3035 100644
--- a/actionpack/test/controller/cookie_test.rb
+++ b/actionpack/test/controller/cookie_test.rb
@@ -82,6 +82,7 @@ def test_setting_test_cookie
   def test_expiring_cookie
     get :logout
     assert_equal [ CGI::Cookie::new("name" => "user_name", "value" => "", "expires" => Time.at(0)) ], @response.headers["cookie"]
+    assert_equal CGI::Cookie::new("name" => "user_name", "value" => "", "expires" => Time.at(0)).value, []
   end  
   
   def test_cookiejar_accessor