diff --git a/doc/src/api/apps/chapter.xml b/doc/src/api/apps/chapter.xml
index b188d9cf..1abf6c62 100644
--- a/doc/src/api/apps/chapter.xml
+++ b/doc/src/api/apps/chapter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
                       "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
 <!ENTITY scfreeapps SYSTEM "sc_free_apps.xml">
 <!ENTITY scfindappbyaid SYSTEM "sc_find_app_by_aid.xml">
diff --git a/doc/src/api/asn1/chapter.xml b/doc/src/api/asn1/chapter.xml
index 05c957c5..a1c2719d 100644
--- a/doc/src/api/asn1/chapter.xml
+++ b/doc/src/api/asn1/chapter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
                       "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
 
 <!ENTITY scasn1encode SYSTEM "sc_asn1_encode.xml">
diff --git a/doc/src/api/card/chapter.xml b/doc/src/api/card/chapter.xml
index 629f1375..70b70197 100644
--- a/doc/src/api/card/chapter.xml
+++ b/doc/src/api/card/chapter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
                       "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
 
 <!ENTITY sccardctl SYSTEM "sc_card_ctl.xml">
diff --git a/doc/src/api/file/chapter.xml b/doc/src/api/file/chapter.xml
index 2790dbd9..9f8819fb 100644
--- a/doc/src/api/file/chapter.xml
+++ b/doc/src/api/file/chapter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
                       "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
 <!ENTITY scfilenew SYSTEM "sc_file_new.xml">
 <!ENTITY scfiledup SYSTEM "sc_file_dup.xml">
diff --git a/doc/src/api/init/chapter.xml b/doc/src/api/init/chapter.xml
index d9466e10..69f64571 100644
--- a/doc/src/api/init/chapter.xml
+++ b/doc/src/api/init/chapter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
                       "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
 <!ENTITY scestablishcontext SYSTEM "sc_establish_context.xml">
 <!ENTITY screleasecontext SYSTEM "sc_release_context.xml">
diff --git a/doc/src/api/types/chapter.xml b/doc/src/api/types/chapter.xml
index 45509ebd..dff773c9 100644
--- a/doc/src/api/types/chapter.xml
+++ b/doc/src/api/types/chapter.xml
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
                       "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
 <!ENTITY scfilet SYSTEM "sc_file_t.xml">
 <!ENTITY scpatht SYSTEM "sc_path_t.xml">
 <!ENTITY sccardt SYSTEM "sc_card_t.xml">
+<!ENTITY scappinfot SYSTEM "sc_app_info_t.xml">
+<!ENTITY scasn1entry SYSTEM "sc_asn1_entry.xml">
 
 <!ENTITY includes "#include &lt;opensc.h&gt;">
 ]>
@@ -17,5 +19,7 @@
 	&sccardt;
 	&scpatht;
 	&scfilet;
+	&scappinfot;
+	&scasn1entry;
 </chapter>
 
diff --git a/doc/src/api/util/chapter.xml b/doc/src/api/util/chapter.xml
index ccc09b35..8060849d 100644
--- a/doc/src/api/util/chapter.xml
+++ b/doc/src/api/util/chapter.xml
@@ -1,16 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
+<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook V4.2//EN"
                       "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
 
 <!ENTITY scbase64encode SYSTEM "sc_base64_encode.xml">
 <!ENTITY scbase64decode SYSTEM "sc_base64_decode.xml">
 <!ENTITY scdercopy SYSTEM "sc_der_copy.xml">
 <!ENTITY scderclear SYSTEM "sc_der_clear.xml">
+<!ENTITY scstrerror SYSTEM "sc_strerror.xml">
 
 ]>
 
 <chapter>
 	<title>Miscellaneous utility functions</title>
+	&scstrerror;
 	&scbase64encode;
 	&scbase64decode;
 	&scdercopy;