diff --git a/doc/src/sgml/appendix-obsolete-default-roles.sgml b/doc/src/sgml/appendix-obsolete-default-roles.sgml
index bf828b39ab4..f5133f95760 100644
--- a/doc/src/sgml/appendix-obsolete-default-roles.sgml
+++ b/doc/src/sgml/appendix-obsolete-default-roles.sgml
@@ -1,6 +1,6 @@
-<!-- doc/src/sgml/obsolete-default-roles.sgml -->
+<!-- doc/src/sgml/appendix-obsolete-default-roles.sgml -->
 <!--
-  See doc/src/sgml/obsolete.sgml for why this file exists. Do not change the id attribute.
+  See doc/src/sgml/appendix-obsolete.sgml for why this file exists. Do not change the id attribute.
 -->
 
 <sect1 id="default-roles" xreflabel="default-roles">
diff --git a/doc/src/sgml/appendix-obsolete-pgreceivexlog.sgml b/doc/src/sgml/appendix-obsolete-pgreceivexlog.sgml
index f74d0ae832e..d84412d0478 100644
--- a/doc/src/sgml/appendix-obsolete-pgreceivexlog.sgml
+++ b/doc/src/sgml/appendix-obsolete-pgreceivexlog.sgml
@@ -1,6 +1,6 @@
-<!-- doc/src/sgml/obsolete-pgxlogdump.sgml -->
+<!-- doc/src/sgml/appendix-obsolete-pgreceivexlog.sgml -->
 <!--
-  See doc/src/sgml/obsolete.sgml for why this file exists. Do not change the id attribute.
+  See doc/src/sgml/appendix-obsolete.sgml for why this file exists. Do not change the id attribute.
 -->
 
 <sect1 id="app-pgreceivexlog" xreflabel="pg_receivexlog">
diff --git a/doc/src/sgml/appendix-obsolete-pgresetxlog.sgml b/doc/src/sgml/appendix-obsolete-pgresetxlog.sgml
index 7d999301f15..33008611be5 100644
--- a/doc/src/sgml/appendix-obsolete-pgresetxlog.sgml
+++ b/doc/src/sgml/appendix-obsolete-pgresetxlog.sgml
@@ -1,6 +1,6 @@
-<!-- doc/src/sgml/obsolete-pgresetxlog.sgml -->
+<!-- doc/src/sgml/appendix-obsolete-pgresetxlog.sgml -->
 <!--
-  See doc/src/sgml/obsolete.sgml for why this file exists. Do not change the id attribute.
+  See doc/src/sgml/appendix-obsolete.sgml for why this file exists. Do not change the id attribute.
 -->
 
 <sect1 id="app-pgresetxlog" xreflabel="pg_resetxlog">
diff --git a/doc/src/sgml/appendix-obsolete-pgxlogdump.sgml b/doc/src/sgml/appendix-obsolete-pgxlogdump.sgml
index 4173fee0414..76f2a8f1597 100644
--- a/doc/src/sgml/appendix-obsolete-pgxlogdump.sgml
+++ b/doc/src/sgml/appendix-obsolete-pgxlogdump.sgml
@@ -1,6 +1,6 @@
-<!-- doc/src/sgml/obsolete-pgxlogdump.sgml -->
+<!-- doc/src/sgml/appendix-obsolete-pgxlogdump.sgml -->
 <!--
-  See doc/src/sgml/obsolete.sgml for why this file exists. Do not change the id attribute.
+  See doc/src/sgml/appendix-obsolete.sgml for why this file exists. Do not change the id attribute.
 -->
 
 <sect1 id="pgxlogdump" xreflabel="pg_xlogdump">
diff --git a/doc/src/sgml/appendix-obsolete-recovery-config.sgml b/doc/src/sgml/appendix-obsolete-recovery-config.sgml
index 77c4289531b..1cf49131140 100644
--- a/doc/src/sgml/appendix-obsolete-recovery-config.sgml
+++ b/doc/src/sgml/appendix-obsolete-recovery-config.sgml
@@ -1,6 +1,6 @@
-<!-- doc/src/sgml/obsolete-recovery-config.sgml -->
+<!-- doc/src/sgml/appendix-obsolete-recovery-config.sgml -->
 <!--
-  See doc/src/sgml/obsolete.sgml for why this file exists. Do not change the id attribute.
+  See doc/src/sgml/appendix-obsolete.sgml for why this file exists. Do not change the id attribute.
 -->
 
 <sect1 id="recovery-config" xreflabel="recovery.conf">
diff --git a/doc/src/sgml/appendix-obsolete.sgml b/doc/src/sgml/appendix-obsolete.sgml
index d218de6c098..b1a00c8ce67 100644
--- a/doc/src/sgml/appendix-obsolete.sgml
+++ b/doc/src/sgml/appendix-obsolete.sgml
@@ -1,4 +1,4 @@
-<!-- doc/src/sgml/obsolete.sgml -->
+<!-- doc/src/sgml/appendix-obsolete.sgml -->
 
 <appendix id="appendix-obsolete">
  <title>Obsolete or Renamed Features</title>
diff --git a/doc/src/sgml/backup-manifest.sgml b/doc/src/sgml/backup-manifest.sgml
index 6ecf9977a54..771be1310a1 100644
--- a/doc/src/sgml/backup-manifest.sgml
+++ b/doc/src/sgml/backup-manifest.sgml
@@ -1,4 +1,4 @@
-<!-- doc/src/sgml/backupmanifest.sgml -->
+<!-- doc/src/sgml/backup-manifest.sgml -->
 
 <chapter id="backup-manifest-format">
  <title>Backup Manifest Format</title>