diff --git a/app/models/platform.rb b/app/models/platform.rb
index 6d14ff1e5..a3b69ca62 100644
--- a/app/models/platform.rb
+++ b/app/models/platform.rb
@@ -27,6 +27,11 @@ class Platform < ActiveRecord::Base
       errors.add(:released, I18n.t('flash.platform.released_status_can_not_be_changed'))
     end
   }
+  validate lambda {
+    if personal? && (owner_id_changed? || owner_type_changed?)
+      errors.add :owner, I18n.t('flash.platform.owner_can_not_be_changed')
+    end
+  }, :on => :update
 
   before_create :create_directory
   before_destroy :detele_directory
diff --git a/config/locales/models/platform.en.yml b/config/locales/models/platform.en.yml
index b834312d1..dfc0c9a4a 100644
--- a/config/locales/models/platform.en.yml
+++ b/config/locales/models/platform.en.yml
@@ -50,6 +50,7 @@ en:
   flash:
     platform:
       released_status_can_not_be_changed: Released status can't be changed if platform has been released
+      owner_can_not_be_changed: Owner of personal platform can't be changed
       saved: Platform saved
       created: Platform created
       save_error: Platform save error
diff --git a/config/locales/models/platform.ru.yml b/config/locales/models/platform.ru.yml
index a59233458..cfac8681b 100644
--- a/config/locales/models/platform.ru.yml
+++ b/config/locales/models/platform.ru.yml
@@ -50,6 +50,7 @@ ru:
   flash:
     platform:
       released_status_can_not_be_changed: Released статус платформы не может быть изменен, если платформа уже выпущена
+      owner_can_not_be_changed: Владелец персональной платформы не может быть изменен
       saved: Платформа успешно сохранена
       created: Платформа успешно добавлена
       save_error: Не удалось сохранить платформу
diff --git a/spec/models/platform_spec.rb b/spec/models/platform_spec.rb
index 13ec8a3de..355bd5df5 100644
--- a/spec/models/platform_spec.rb
+++ b/spec/models/platform_spec.rb
@@ -42,9 +42,30 @@ describe Platform do
   end
 
   it 'ensures that folder of platform will be removed after destroy' do
-    platform = FactoryGirl.create(:platform)
+    platform = FactoryGirl.create :platform
     FileUtils.mkdir_p platform.path
     platform.destroy
     Dir.exists?(platform.path).should be_false
   end
+
+  it 'ensures that owner of personal platform can not be changed' do
+    platform = FactoryGirl.create :personal_platform
+    owner = platform.owner
+    platform.owner = FactoryGirl.create :user
+    platform.save.should be_false
+  end
+
+  it 'ensures that owner of platform of group can not be changed' do
+    group = FactoryGirl.create :group
+    platform = FactoryGirl.create :personal_platform, :owner => group
+    platform.owner = FactoryGirl.create :user
+    platform.save.should be_false
+  end
+
+  it 'ensures that owner of main platform can be changed' do
+    platform = FactoryGirl.create :platform
+    platform.owner = FactoryGirl.create :user
+    platform.save.should be_true
+  end
+
 end