diff --git a/Build.PL b/Build.PL
index 2f0539c..20df077 100755
--- a/Build.PL
+++ b/Build.PL
@@ -18,6 +18,7 @@ my $build = Module::Build->new(
         'DateTime::Format::ISO8601.pm' => 0,
         'DateTime::Format::Mail.pm' => 0,
         'SVG' => 0,
+        'XML::LibXML::PrettyPrint' => 0,
     },
 );
 $build->create_build_script;
diff --git a/lib/BurguillosInfo/Controller/Sitemap.pm b/lib/BurguillosInfo/Controller/Sitemap.pm
index ad4ccf7..7f8d6fd 100644
--- a/lib/BurguillosInfo/Controller/Sitemap.pm
+++ b/lib/BurguillosInfo/Controller/Sitemap.pm
@@ -10,6 +10,9 @@ use BurguillosInfo::Posts;
 
 use DateTime::Format::ISO8601;
 
+use XML::LibXML;
+use XML::LibXML::PrettyPrint;
+
 use Mojo::Base 'Mojolicious::Controller', '-signatures';
 
 sub sitemap ($self) {
@@ -23,7 +26,12 @@ sub sitemap ($self) {
     for my $category_key ( keys %$categories ) {
         $self->_append_category_dom( $dom, $category_key, $categories );
     }
-    $self->render(text => $dom, format => 'xml');
+    my $xml_string = "$dom";
+    my $document = XML::LibXML->load_xml(string => $xml_string);
+    my $pretty_print = XML::LibXML::PrettyPrint->new(indent_string => (" " x 4));
+    $pretty_print->pretty_print($document);
+    $xml_string = $document->toString();
+    $self->render(text => $xml_string, format => 'xml');
 }
 
 sub _append_category_dom ( $self, $dom, $category_key, $categories ) {