diff --git a/app/views/versions/show.api.rsb b/app/views/versions/show.api.rsb
index 345ec56da..44d69a53a 100644
--- a/app/views/versions/show.api.rsb
+++ b/app/views/versions/show.api.rsb
@@ -1,6 +1,6 @@
 api.version do
   api.id @version.id
-  api.project(:id => @version.project_id, :name => @version.project.name) unless @version.project.nil?
+  api.project(:id => @project.id, :name => @project.name) unless @project.nil?
 
   api.name            @version.name
   api.description     @version.description
@@ -8,6 +8,10 @@ api.version do
   api.due_date        @version.effective_date
   api.sharing         @version.sharing
   api.wiki_page_title @version.wiki_page_title
+  if User.current.allowed_to?(:view_time_entries, @project)
+    api.estimated_hours(@version.visible_fixed_issues.estimated_hours)
+    api.spent_hours(@version.spent_hours)
+  end
 
   render_api_custom_values @version.visible_custom_field_values, api
 
diff --git a/test/integration/api_test/versions_test.rb b/test/integration/api_test/versions_test.rb
index d5385b855..c819c2d43 100644
--- a/test/integration/api_test/versions_test.rb
+++ b/test/integration/api_test/versions_test.rb
@@ -28,7 +28,8 @@ class Redmine::ApiTest::VersionsTest < Redmine::ApiTest::Base
            :members,
            :enabled_modules,
            :versions,
-           :wikis, :wiki_pages
+           :wikis, :wiki_pages,
+           :custom_fields, :time_entries
 
   test "GET /projects/:project_id/versions.xml should return project versions" do
     get '/projects/1/versions.xml'
@@ -125,6 +126,10 @@ class Redmine::ApiTest::VersionsTest < Redmine::ApiTest::Base
   end
 
   test "GET /versions/:id.xml should return the version" do
+    assert_equal [2, 12], Version.find(2).visible_fixed_issues.pluck(:id).sort
+    TimeEntry.generate!(:issue_id => 2, :hours => 1.0)
+    TimeEntry.generate!(:issue_id => 12, :hours => 1.5)
+
     get '/versions/2.xml'
 
     assert_response :success
@@ -134,6 +139,8 @@ class Redmine::ApiTest::VersionsTest < Redmine::ApiTest::Base
       assert_select 'name', :text => '1.0'
       assert_select 'sharing', :text => 'none'
       assert_select 'wiki_page_title', :text => 'ECookBookV1'
+      assert_select 'estimated_hours', :text => '0.5'
+      assert_select 'spent_hours', :text => '2.5'
     end
   end