diff --git a/app/controllers/issues_controller.rb b/app/controllers/issues_controller.rb
index 4238215..e8e1e3c 100644
--- a/app/controllers/issues_controller.rb
+++ b/app/controllers/issues_controller.rb
@@ -79,7 +79,7 @@ class IssuesController < ApplicationController
           Issue.load_visible_relations(@issues) if include_in_api_response?('relations')
         }
         format.atom { render_feed(@issues, :title => "#{@project || Setting.app_title}: #{l(:label_issue_plural)}") }
-        format.csv  { send_data(query_to_csv(@issues, @query, params), :type => 'text/csv; header=present', :filename => 'issues.csv') }
+        format.csv  { send_data(query_to_csv(@issues, @query, params[:csv]), :type => 'text/csv; header=present', :filename => 'issues.csv') }
         format.pdf  { send_file_headers! :type => 'application/pdf', :filename => 'issues.pdf' }
       end
     else
diff --git a/app/helpers/queries_helper.rb b/app/helpers/queries_helper.rb
index f817265..865b950 100644
--- a/app/helpers/queries_helper.rb
+++ b/app/helpers/queries_helper.rb
@@ -184,6 +184,7 @@ module QueriesHelper
   end
 
   def query_to_csv(items, query, options={})
+    options ||= {}
     columns = (options[:columns] == 'all' ? query.available_inline_columns : query.inline_columns)
     query.available_block_columns.each do |column|
       if options[column.name].present?
diff --git a/app/views/issues/index.html.erb b/app/views/issues/index.html.erb
index f08f76d..de87c5e 100644
--- a/app/views/issues/index.html.erb
+++ b/app/views/issues/index.html.erb
@@ -79,11 +79,11 @@
   <h3 class="title"><%= l(:label_export_options, :export_format => 'CSV') %></h3>  
   <%= form_tag(params.merge({:format => 'csv',:page=>nil}), :method => :get, :id => 'csv-export-form') do %>
   <p>
-    <label><%= radio_button_tag 'columns', '', true %> <%= l(:description_selected_columns) %></label><br />
-    <label><%= radio_button_tag 'columns', 'all' %> <%= l(:description_all_columns) %></label>
+    <label><%= radio_button_tag 'csv[columns]', '', true %> <%= l(:description_selected_columns) %></label><br />
+    <label><%= radio_button_tag 'csv[columns]', 'all' %> <%= l(:description_all_columns) %></label>
   </p>
   <p>
-    <label><%= check_box_tag 'description', '1', @query.has_column?(:description) %> <%= l(:field_description) %></label>
+    <label><%= check_box_tag 'csv[description]', '1', @query.has_column?(:description) %> <%= l(:field_description) %></label>
   </p>
   <% if @issue_count > Setting.issues_export_limit.to_i %>
   <p class="icon icon-warning">
diff --git a/test/functional/issues_controller_test.rb b/test/functional/issues_controller_test.rb
index 390da19..b2e4965 100644
--- a/test/functional/issues_controller_test.rb
+++ b/test/functional/issues_controller_test.rb
@@ -449,7 +449,7 @@ class IssuesControllerTest < ActionController::TestCase
     Issue.generate!(:description => 'test_index_csv_with_description')
 
     with_settings :default_language => 'en' do
-      get :index, :format => 'csv', :description => '1'
+      get :index, :format => 'csv', :csv => {:description => '1'}
       assert_response :success
       assert_not_nil assigns(:issues)
     end
@@ -472,7 +472,7 @@ class IssuesControllerTest < ActionController::TestCase
   end
 
   def test_index_csv_with_all_columns
-    get :index, :format => 'csv', :columns => 'all'
+    get :index, :format => 'csv', :csv => {:columns => 'all'}
     assert_response :success
     assert_not_nil assigns(:issues)
     assert_equal 'text/csv; header=present', @response.content_type
@@ -487,7 +487,7 @@ class IssuesControllerTest < ActionController::TestCase
     issue.custom_field_values = {1 => ['MySQL', 'Oracle']}
     issue.save!
 
-    get :index, :format => 'csv', :columns => 'all'
+    get :index, :format => 'csv', :csv => {:columns => 'all'}
     assert_response :success
     lines = @response.body.chomp.split("\n")
     assert lines.detect {|line| line.include?('"MySQL, Oracle"')}
@@ -498,14 +498,14 @@ class IssuesControllerTest < ActionController::TestCase
     issue = Issue.generate!(:project_id => 1, :tracker_id => 1, :custom_field_values => {field.id => '185.6'})
 
     with_settings :default_language => 'fr' do
-      get :index, :format => 'csv', :columns => 'all'
+      get :index, :format => 'csv', :csv => {:columns => 'all'}
       assert_response :success
       issue_line = response.body.chomp.split("\n").map {|line| line.split(';')}.detect {|line| line[0]==issue.id.to_s}
       assert_include '185,60', issue_line
     end
 
     with_settings :default_language => 'en' do
-      get :index, :format => 'csv', :columns => 'all'
+      get :index, :format => 'csv', :csv => {:columns => 'all'}
       assert_response :success
       issue_line = response.body.chomp.split("\n").map {|line| line.split(',')}.detect {|line| line[0]==issue.id.to_s}
       assert_include '185.60', issue_line