diff --git a/app/controllers/platforms/platforms_controller.rb b/app/controllers/platforms/platforms_controller.rb
index e2073276f..4f8192456 100644
--- a/app/controllers/platforms/platforms_controller.rb
+++ b/app/controllers/platforms/platforms_controller.rb
@@ -12,7 +12,7 @@ class Platforms::PlatformsController < Platforms::BaseController
       :user => current_user,
       :repositories => params[:repositories],
       :arches => params[:arches],
-      :auto_publish => params[:auto_publish]
+      :auto_publish => params[:auto_publish] || false
     )
     if mass_build.save
       redirect_to(mass_builds_platform_path(@platform), :notice => t("flash.platform.build_all_success"))
diff --git a/app/models/mass_build.rb b/app/models/mass_build.rb
index d82ff7d0c..01bf362fb 100644
--- a/app/models/mass_build.rb
+++ b/app/models/mass_build.rb
@@ -7,7 +7,8 @@ class MassBuild < ActiveRecord::Base
 
   attr_accessor :repositories, :arches
 
-  validates :platform_id, :auto_publish, :arch_names, :name, :user_id, :repositories, :presence => true
+  validates :platform_id, :arch_names, :name, :user_id, :repositories, :presence => true
+  validates_inclusion_of :auto_publish, :in => [true, false]
 
   after_create :build_all
 
diff --git a/app/views/platforms/platforms/build_all.html.haml b/app/views/platforms/platforms/build_all.html.haml
index c3059be32..5a204a00a 100644
--- a/app/views/platforms/platforms/build_all.html.haml
+++ b/app/views/platforms/platforms/build_all.html.haml
@@ -19,7 +19,7 @@
       .both
     %h3= t("activerecord.attributes.build_list.preferences")
     .both.bottom_20
-      = check_box_tag :auto_publish, true, params[:auto_publish].present? ? params[:auto_publish].present? : true, :id => 'auto_publish'
+      = check_box_tag :auto_publish, true, params[:auto_publish].present? ? params[:auto_publish].present? : false, :id => 'auto_publish'
       = label_tag :auto_publish
 
 %br
diff --git a/db/migrate/20120529130537_add_default_false_to_auto_publish_of_mass_builds.rb b/db/migrate/20120529130537_add_default_false_to_auto_publish_of_mass_builds.rb
new file mode 100644
index 000000000..d9e595b7f
--- /dev/null
+++ b/db/migrate/20120529130537_add_default_false_to_auto_publish_of_mass_builds.rb
@@ -0,0 +1,5 @@
+class AddDefaultFalseToAutoPublishOfMassBuilds < ActiveRecord::Migration
+  def change
+    change_column :mass_builds, :auto_publish, :boolean, :default => false, :null => false
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 5ed652d33..d02f68ff8 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20120523113925) do
+ActiveRecord::Schema.define(:version => 20120529130537) do
 
   create_table "activity_feeds", :force => true do |t|
     t.integer  "user_id",    :null => false
@@ -215,11 +215,11 @@ ActiveRecord::Schema.define(:version => 20120523113925) do
   create_table "mass_builds", :force => true do |t|
     t.integer  "platform_id"
     t.string   "name"
-    t.datetime "created_at",   :null => false
-    t.datetime "updated_at",   :null => false
+    t.datetime "created_at",                      :null => false
+    t.datetime "updated_at",                      :null => false
     t.string   "arch_names"
     t.integer  "user_id"
-    t.boolean  "auto_publish"
+    t.boolean  "auto_publish", :default => false, :null => false
   end
 
   create_table "platforms", :force => true do |t|