diff --git a/app/admin/AdminTasks.scala b/app/admin/AdminTasks.scala
index 0ea62dc..58ee37c 100644
--- a/app/admin/AdminTasks.scala
+++ b/app/admin/AdminTasks.scala
@@ -23,6 +23,7 @@ import util.renderers.RenderContext
 import util.renderers.RenderTypeBlog
 import controllers.routes
 import java.nio.file.Files
+import play.api.Configuration
 
 /**
  * Admin tasks.
@@ -40,6 +41,8 @@ object AdminTasks extends Logging {
   val mdFormat = MarkdownContentRenderer.renderFormat
 
   lazy val config = ConfigFactory.defaultApplication()
+  
+  implicit lazy val playConfig = Configuration(config)
 
   def dbConfig = DatabaseConfig.forConfig[MySQLDriver](path = "slick.dbs.default", config = config)
 
diff --git a/app/controllers/AdminController.scala b/app/controllers/AdminController.scala
index 377f615..94eb105 100644
--- a/app/controllers/AdminController.scala
+++ b/app/controllers/AdminController.scala
@@ -28,6 +28,7 @@ import scala.util.Failure
 import scala.util.Success
 import util.renderers.ContentWithAbstract
 import models.Attachment
+import play.api.Play.current
 
 @Singleton
 class AdminController @Inject() (blogService: BlogService, val messagesApi: MessagesApi) extends AbstractController with I18nSupport {
@@ -262,6 +263,7 @@ class AdminController @Inject() (blogService: BlogService, val messagesApi: Mess
   }
 
   private def render(blogEntry: BlogEntry, attachments: Seq[Attachment], content: String) = {
+    implicit val config = current.configuration
     implicit val renderContext = RenderContext.blogRenderContext(blogEntry, attachments)
     ContentRenderers.render(content)
   }
diff --git a/app/controllers/SiteMapController.scala b/app/controllers/SiteMapController.scala
index 96c234b..b32b940 100644
--- a/app/controllers/SiteMapController.scala
+++ b/app/controllers/SiteMapController.scala
@@ -55,7 +55,7 @@ class SiteMapController @Inject() (blogService: BlogService) extends AbstractCon
                 <changefreq>{ url.changefreq }</changefreq>
                 {
                   if (url.changed.isDefined) {
-                    <changed>{ url.lastmod.get }</changed>
+                    <lastmod>{ url.lastmod.get }</lastmod>
                   }
                 }
                 <priority>{ url.priority }</priority>
diff --git a/app/util/renderers/ContentRenderer.scala b/app/util/renderers/ContentRenderer.scala
index cb3163c..f6cb7e2 100644
--- a/app/util/renderers/ContentRenderer.scala
+++ b/app/util/renderers/ContentRenderer.scala
@@ -8,6 +8,7 @@ import play.api.mvc.Call
 import util.renderers.post.PostRenderers
 import util.renderers.pre.PreRenderers
 import models.Attachment
+import play.api.Configuration
 
 case class ContentWithAbstract(abstractText: String, content: String) {
 
@@ -24,13 +25,16 @@ case class RenderContext(renderType: RenderType, format: String, attachments: Se
 
 object RenderContext {
 
-  val blogAttachmentRoot = new File("media/blog")
+  def blogAttachmentRoot(implicit configuration: Configuration) =
+    new File(configuration.getString("media.path").getOrElse("media") + "/blog")
 
-  def blogAttachmentDestination(blogId: Int) = new File(blogAttachmentRoot, blogId.toString)
+  def blogAttachmentDestination(blogId: Int)(implicit configuration: Configuration) =
+    new File(blogAttachmentRoot, blogId.toString)
 
-  def blogAttachmentFolder(blogId: Int) = Option(blogAttachmentDestination(blogId)) filter { _.isDirectory }
+  def blogAttachmentFolder(blogId: Int)(implicit configuration: Configuration) =
+    Option(blogAttachmentDestination(blogId)) filter { _.isDirectory }
 
-  def blogRenderContext(blog: BlogEntry, attachments: Seq[Attachment]): RenderContext =
+  def blogRenderContext(blog: BlogEntry, attachments: Seq[Attachment])(implicit configuration: Configuration): RenderContext =
     RenderContext(RenderTypeBlog, blog.contentFormat, attachments,
     blogAttachmentFolder(blog.id), routes.BlogController.showBlogEntry(blog.url),
     routes.BlogController.attachment(blog.url, _), routes.BlogController.attachmentGallery(blog.url, _),
diff --git a/conf/application.conf b/conf/application.conf
index 0be8797..7922939 100644
--- a/conf/application.conf
+++ b/conf/application.conf
@@ -46,6 +46,7 @@ slick.dbs.default = {
 # Media
 # ~~~~~
 media {
+  # !!! This connection parameters must be overwritten in instance.conf !!!
   path = media
 }