diff --git a/xml/docu_styleguide.content.xml b/xml/docu_styleguide.content.xml
index ef797b8..c749631 100644
--- a/xml/docu_styleguide.content.xml
+++ b/xml/docu_styleguide.content.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE sect1
+<!DOCTYPE chapter
 [
   <!ENTITY % entities SYSTEM "entity-decl.ent">
     %entities;
diff --git a/xml/docu_styleguide.language.xml b/xml/docu_styleguide.language.xml
index 1a49bac..0aea851 100644
--- a/xml/docu_styleguide.language.xml
+++ b/xml/docu_styleguide.language.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE sect1
+<!DOCTYPE chapter
 [
   <!ENTITY % entities SYSTEM "entity-decl.ent">
     %entities;
diff --git a/xml/docu_styleguide.manage.xml b/xml/docu_styleguide.manage.xml
index c1955ee..ebd3006 100644
--- a/xml/docu_styleguide.manage.xml
+++ b/xml/docu_styleguide.manage.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE sect1
+<!DOCTYPE chapter
 [
   <!ENTITY % entities SYSTEM "entity-decl.ent">
     %entities;
diff --git a/xml/docu_styleguide.name.xml b/xml/docu_styleguide.name.xml
index 3b2caf7..f71376d 100644
--- a/xml/docu_styleguide.name.xml
+++ b/xml/docu_styleguide.name.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE sect1
+<!DOCTYPE chapter
 [
   <!ENTITY % entities SYSTEM "entity-decl.ent">
     %entities;
diff --git a/xml/docu_styleguide.outline.xml b/xml/docu_styleguide.outline.xml
index f2cfe26..bd688de 100644
--- a/xml/docu_styleguide.outline.xml
+++ b/xml/docu_styleguide.outline.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE sect1
+<!DOCTYPE chapter
 [
   <!ENTITY % entities SYSTEM "entity-decl.ent">
     %entities;
diff --git a/xml/docu_styleguide.smartdocs.xml b/xml/docu_styleguide.smartdocs.xml
index eac1a17..80b01f2 100644
--- a/xml/docu_styleguide.smartdocs.xml
+++ b/xml/docu_styleguide.smartdocs.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE sect1
+<!DOCTYPE chapter
 [
   <!ENTITY % entities SYSTEM "entity-decl.ent">
     %entities;
diff --git a/xml/docu_styleguide.structure.xml b/xml/docu_styleguide.structure.xml
index e96af3f..ae73135 100644
--- a/xml/docu_styleguide.structure.xml
+++ b/xml/docu_styleguide.structure.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE sect1
+<!DOCTYPE chapter
 [
   <!ENTITY % entities SYSTEM "entity-decl.ent">
     %entities;
diff --git a/xml/docu_styleguide.taglist.xml b/xml/docu_styleguide.taglist.xml
index ca255ea..951967b 100644
--- a/xml/docu_styleguide.taglist.xml
+++ b/xml/docu_styleguide.taglist.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE sect1
+<!DOCTYPE chapter
 [
   <!ENTITY % entities SYSTEM "entity-decl.ent">
     %entities;
diff --git a/xml/docu_styleguide.techwriting.xml b/xml/docu_styleguide.techwriting.xml
index d056365..a28332b 100644
--- a/xml/docu_styleguide.techwriting.xml
+++ b/xml/docu_styleguide.techwriting.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE sect1
+<!DOCTYPE chapter
 [
   <!ENTITY % entities SYSTEM "entity-decl.ent">
     %entities;
diff --git a/xml/docu_styleguide.webwriting.xml b/xml/docu_styleguide.webwriting.xml
index 2b7ab24..8c8852b 100644
--- a/xml/docu_styleguide.webwriting.xml
+++ b/xml/docu_styleguide.webwriting.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE sect1
+<!DOCTYPE chapter
 [
   <!ENTITY % entities SYSTEM "entity-decl.ent">
     %entities;
diff --git a/xml/docu_styleguide.xmlformat.xml b/xml/docu_styleguide.xmlformat.xml
index 6279f60..655f169 100644
--- a/xml/docu_styleguide.xmlformat.xml
+++ b/xml/docu_styleguide.xmlformat.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE sect1
+<!DOCTYPE chapter
 [
   <!ENTITY % entities SYSTEM "entity-decl.ent">
     %entities;