diff --git a/README.md b/README.md
index 7857df6..cdef8b9 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ use PDF::XObject::Image;
 my PDF::API6 $pdf .= new;
 my PDF::Tags $tags .= create: :$pdf;
 # create the document root
-my PDF::Tags::Elem $doc = $tags.Document;
+my PDF::Tags::Elem $doc = $tags.Document: :Lang<en-NZ>;
 
 my PDF::Page $page = $pdf.add-page;
 my $header-font = $page.core-font: :family<Helvetica>, :weight<bold>;
diff --git a/docs/index.md b/docs/index.md
index 7857df6..cdef8b9 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -26,7 +26,7 @@ use PDF::XObject::Image;
 my PDF::API6 $pdf .= new;
 my PDF::Tags $tags .= create: :$pdf;
 # create the document root
-my PDF::Tags::Elem $doc = $tags.Document;
+my PDF::Tags::Elem $doc = $tags.Document: :Lang<en-NZ>;
 
 my PDF::Page $page = $pdf.add-page;
 my $header-font = $page.core-font: :family<Helvetica>, :weight<bold>;
diff --git a/t/attributes.pdf b/t/attributes.pdf
index d7c6408..8b57146 100644
Binary files a/t/attributes.pdf and b/t/attributes.pdf differ
diff --git a/t/attributes.t b/t/attributes.t
index 61ed737..4ab684c 100644
--- a/t/attributes.t
+++ b/t/attributes.t
@@ -1,6 +1,6 @@
 use v6;
 use Test;
-plan 6;
+plan 7;
 
 use PDF::Content::FontObj;
 use PDF::Tags;
@@ -11,7 +11,9 @@ use PDF::COS::Name;
 
 my PDF::Class $pdf .= new;
 my PDF::Tags $tags .= create: :$pdf;
-my PDF::Tags::Elem $doc = $tags.Document;
+my PDF::Tags::Elem $doc = $tags.Document: :Lang<en-NZ>;
+my $lang = $doc.Lang;
+is $doc.Lang, 'en-NZ';
 
 my PDF::Page $page = $pdf.add-page;
 my PDF::Content::FontObj $header-font = $pdf.core-font: :family<Helvetica>, :weight<bold>;