diff --git a/app/controllers/files_controller.rb b/app/controllers/files_controller.rb
index 253d73b..73409c7 100644
--- a/app/controllers/files_controller.rb
+++ b/app/controllers/files_controller.rb
@@ -47,9 +47,16 @@ class FilesController < ApplicationController
     attachments = Attachment.attach_files(container, params[:attachments])
     render_attachment_warning_if_needed(container)
 
-    if !attachments.empty? && !attachments[:files].blank? && Setting.notified_events.include?('file_added')
-      Mailer.attachments_added(attachments[:files]).deliver
+    if attachments[:files].present?
+      if Setting.notified_events.include?('file_added')
+        Mailer.attachments_added(attachments[:files]).deliver
+      end
+      flash[:notice] = l(:label_file_added)
+      redirect_to project_files_path(@project)
+    else
+      flash.now[:error] = l(:label_attachment) + " " + l('activerecord.errors.messages.invalid')
+      new
+      render :action => 'new'
     end
-    redirect_to project_files_path(@project)
   end
 end
diff --git a/test/functional/files_controller_test.rb b/test/functional/files_controller_test.rb
index b4d7d7d..d79b88a 100644
--- a/test/functional/files_controller_test.rb
+++ b/test/functional/files_controller_test.rb
@@ -106,4 +106,15 @@ class FilesControllerTest < ActionController::TestCase
     assert_equal Version.find(2), a.container
   end
 
+  def test_create_without_file
+    set_tmp_attachments_directory
+    @request.session[:user_id] = 2
+
+    assert_no_difference 'Attachment.count' do
+      post :create, :project_id => 1, :version_id => ''
+      assert_response 200
+      assert_template 'new'
+    end
+    assert_select 'div.error', 'File is invalid'
+  end
 end