diff --git a/contrib/oid2name/oid2name.c b/contrib/oid2name/oid2name.c
index 769e527..63e360c 100644
--- a/contrib/oid2name/oid2name.c
+++ b/contrib/oid2name/oid2name.c
@@ -9,7 +9,7 @@
  */
 #include "postgres_fe.h"
 
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 
 #include "fe_utils/connect.h"
 #include "libpq-fe.h"
diff --git a/contrib/vacuumlo/vacuumlo.c b/contrib/vacuumlo/vacuumlo.c
index ab6b17c..7eb474c 100644
--- a/contrib/vacuumlo/vacuumlo.c
+++ b/contrib/vacuumlo/vacuumlo.c
@@ -21,7 +21,7 @@
 #include <termios.h>
 #endif
 
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 
 #include "fe_utils/connect.h"
 #include "libpq-fe.h"
diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c
index 78990f5..2dbdd3e 100644
--- a/src/bin/initdb/initdb.c
+++ b/src/bin/initdb/initdb.c
@@ -61,9 +61,8 @@
 
 #include "access/xlog_internal.h"
 #include "catalog/catalog.h"
-#include "catalog/pg_authid.h"
-#include "catalog/pg_class.h"
-#include "catalog/pg_collation.h"
+#include "catalog/pg_authid_d.h"
+#include "catalog/pg_collation_d.h"
 #include "common/file_utils.h"
 #include "common/restricted_token.h"
 #include "common/username.h"
diff --git a/src/bin/pg_dump/common.c b/src/bin/pg_dump/common.c
index 0a758f1..e7db78b 100644
--- a/src/bin/pg_dump/common.c
+++ b/src/bin/pg_dump/common.c
@@ -21,7 +21,7 @@
 
 #include <ctype.h>
 
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 #include "fe_utils/string_utils.h"
 
 
diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c
index d066f4f..5d28c82 100644
--- a/src/bin/pg_dump/pg_dump.c
+++ b/src/bin/pg_dump/pg_dump.c
@@ -42,17 +42,17 @@
 #include "access/attnum.h"
 #include "access/sysattr.h"
 #include "access/transam.h"
-#include "catalog/pg_aggregate.h"
-#include "catalog/pg_am.h"
-#include "catalog/pg_attribute.h"
-#include "catalog/pg_cast.h"
-#include "catalog/pg_class.h"
-#include "catalog/pg_default_acl.h"
-#include "catalog/pg_largeobject.h"
-#include "catalog/pg_largeobject_metadata.h"
-#include "catalog/pg_proc.h"
-#include "catalog/pg_trigger.h"
-#include "catalog/pg_type.h"
+#include "catalog/pg_aggregate_d.h"
+#include "catalog/pg_am_d.h"
+#include "catalog/pg_attribute_d.h"
+#include "catalog/pg_cast_d.h"
+#include "catalog/pg_class_d.h"
+#include "catalog/pg_default_acl_d.h"
+#include "catalog/pg_largeobject_d.h"
+#include "catalog/pg_largeobject_metadata_d.h"
+#include "catalog/pg_proc_d.h"
+#include "catalog/pg_trigger_d.h"
+#include "catalog/pg_type_d.h"
 #include "libpq/libpq-fs.h"
 
 #include "dumputils.h"
diff --git a/src/bin/pg_dump/pg_dump_sort.c b/src/bin/pg_dump/pg_dump_sort.c
index 5ce3c5d..d2b0949 100644
--- a/src/bin/pg_dump/pg_dump_sort.c
+++ b/src/bin/pg_dump/pg_dump_sort.c
@@ -19,7 +19,7 @@
 #include "pg_backup_utils.h"
 #include "pg_dump.h"
 
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 
 /* translator: this is a module name */
 static const char *modulename = gettext_noop("sorter");
diff --git a/src/bin/pg_rewind/filemap.c b/src/bin/pg_rewind/filemap.c
index 876a62a..c3fc519 100644
--- a/src/bin/pg_rewind/filemap.c
+++ b/src/bin/pg_rewind/filemap.c
@@ -20,7 +20,7 @@
 
 #include "common/string.h"
 #include "catalog/catalog.h"
-#include "catalog/pg_tablespace.h"
+#include "catalog/pg_tablespace_d.h"
 #include "storage/fd.h"
 
 filemap_t  *filemap = NULL;
diff --git a/src/bin/pg_rewind/libpq_fetch.c b/src/bin/pg_rewind/libpq_fetch.c
index 5914b15..fa845bb 100644
--- a/src/bin/pg_rewind/libpq_fetch.c
+++ b/src/bin/pg_rewind/libpq_fetch.c
@@ -23,7 +23,7 @@
 
 #include "libpq-fe.h"
 #include "catalog/catalog.h"
-#include "catalog/pg_type.h"
+#include "catalog/pg_type_d.h"
 #include "fe_utils/connect.h"
 #include "port/pg_bswap.h"
 
diff --git a/src/bin/pg_upgrade/check.c b/src/bin/pg_upgrade/check.c
index 8d4f254..577db73 100644
--- a/src/bin/pg_upgrade/check.c
+++ b/src/bin/pg_upgrade/check.c
@@ -9,7 +9,7 @@
 
 #include "postgres_fe.h"
 
-#include "catalog/pg_authid.h"
+#include "catalog/pg_authid_d.h"
 #include "fe_utils/string_utils.h"
 #include "mb/pg_wchar.h"
 #include "pg_upgrade.h"
diff --git a/src/bin/pg_upgrade/function.c b/src/bin/pg_upgrade/function.c
index d61fa38..03fd155 100644
--- a/src/bin/pg_upgrade/function.c
+++ b/src/bin/pg_upgrade/function.c
@@ -12,7 +12,7 @@
 #include "pg_upgrade.h"
 
 #include "access/transam.h"
-#include "catalog/pg_language.h"
+#include "catalog/pg_language_d.h"
 
 
 /*
diff --git a/src/bin/pg_upgrade/info.c b/src/bin/pg_upgrade/info.c
index f9f07f4..fd0b44c 100644
--- a/src/bin/pg_upgrade/info.c
+++ b/src/bin/pg_upgrade/info.c
@@ -12,7 +12,7 @@
 #include "pg_upgrade.h"
 
 #include "access/transam.h"
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 
 
 static void create_rel_filename_map(const char *old_data, const char *new_data,
diff --git a/src/bin/pg_upgrade/pg_upgrade.c b/src/bin/pg_upgrade/pg_upgrade.c
index d124127..16e0181 100644
--- a/src/bin/pg_upgrade/pg_upgrade.c
+++ b/src/bin/pg_upgrade/pg_upgrade.c
@@ -37,7 +37,7 @@
 #include "postgres_fe.h"
 
 #include "pg_upgrade.h"
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 #include "common/restricted_token.h"
 #include "fe_utils/string_utils.h"
 
diff --git a/src/bin/pg_upgrade/relfilenode.c b/src/bin/pg_upgrade/relfilenode.c
index 50bee28..ed604f2 100644
--- a/src/bin/pg_upgrade/relfilenode.c
+++ b/src/bin/pg_upgrade/relfilenode.c
@@ -12,7 +12,7 @@
 #include "pg_upgrade.h"
 
 #include <sys/stat.h>
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 #include "access/transam.h"
 
 
diff --git a/src/bin/pg_upgrade/version.c b/src/bin/pg_upgrade/version.c
index 76e9d65..712ed14 100644
--- a/src/bin/pg_upgrade/version.c
+++ b/src/bin/pg_upgrade/version.c
@@ -11,7 +11,7 @@
 
 #include "pg_upgrade.h"
 
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 #include "fe_utils/string_utils.h"
 
 
diff --git a/src/bin/psql/command.c b/src/bin/psql/command.c
index 3560318..4c85f43 100644
--- a/src/bin/psql/command.c
+++ b/src/bin/psql/command.c
@@ -23,7 +23,7 @@
 #include <sys/stat.h>			/* for stat() */
 #endif
 
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 #include "portability/instr_time.h"
 
 #include "libpq-fe.h"
diff --git a/src/bin/psql/describe.c b/src/bin/psql/describe.c
index 0c3be1f..de43886 100644
--- a/src/bin/psql/describe.c
+++ b/src/bin/psql/describe.c
@@ -14,9 +14,9 @@
 
 #include <ctype.h>
 
-#include "catalog/pg_attribute.h"
-#include "catalog/pg_class.h"
-#include "catalog/pg_default_acl.h"
+#include "catalog/pg_attribute_d.h"
+#include "catalog/pg_class_d.h"
+#include "catalog/pg_default_acl_d.h"
 #include "fe_utils/string_utils.h"
 
 #include "common.h"
diff --git a/src/bin/psql/tab-complete.c b/src/bin/psql/tab-complete.c
index 00287bb..061de8e 100644
--- a/src/bin/psql/tab-complete.c
+++ b/src/bin/psql/tab-complete.c
@@ -41,7 +41,7 @@
 
 #include <ctype.h>
 
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 
 #include "libpq-fe.h"
 #include "pqexpbuffer.h"
diff --git a/src/bin/scripts/vacuumdb.c b/src/bin/scripts/vacuumdb.c
index 91ebb00..60f8b1c 100644
--- a/src/bin/scripts/vacuumdb.c
+++ b/src/bin/scripts/vacuumdb.c
@@ -16,7 +16,7 @@
 #include <sys/select.h>
 #endif
 
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 
 #include "common.h"
 #include "fe_utils/simple_list.h"
diff --git a/src/common/relpath.c b/src/common/relpath.c
index d98050c..f0fa674 100644
--- a/src/common/relpath.c
+++ b/src/common/relpath.c
@@ -19,7 +19,7 @@
 #endif
 
 #include "catalog/catalog.h"
-#include "catalog/pg_tablespace.h"
+#include "catalog/pg_tablespace_d.h"
 #include "common/relpath.h"
 #include "storage/backendid.h"
 
diff --git a/src/fe_utils/print.c b/src/fe_utils/print.c
index ec5ad45..cb9a9a0 100644
--- a/src/fe_utils/print.c
+++ b/src/fe_utils/print.c
@@ -32,7 +32,7 @@
 
 #include "fe_utils/print.h"
 
-#include "catalog/pg_type.h"
+#include "catalog/pg_type_d.h"
 #include "fe_utils/mbprint.h"
 
 
diff --git a/src/interfaces/ecpg/ecpglib/descriptor.c b/src/interfaces/ecpg/ecpglib/descriptor.c
index bdd2518..f38bf34 100644
--- a/src/interfaces/ecpg/ecpglib/descriptor.c
+++ b/src/interfaces/ecpg/ecpglib/descriptor.c
@@ -5,7 +5,8 @@
 
 #define POSTGRES_ECPG_INTERNAL
 #include "postgres_fe.h"
-#include "pg_type.h"
+
+#include "catalog/pg_type_d.h"
 
 #include "ecpg-pthread-win32.h"
 #include "ecpgtype.h"
diff --git a/src/interfaces/ecpg/ecpglib/execute.c b/src/interfaces/ecpg/ecpglib/execute.c
index 0404385..c1b44d3 100644
--- a/src/interfaces/ecpg/ecpglib/execute.c
+++ b/src/interfaces/ecpg/ecpglib/execute.c
@@ -19,7 +19,7 @@
 #include <float.h>
 #include <math.h>
 
-#include "pg_type.h"
+#include "catalog/pg_type_d.h"
 
 #include "ecpgtype.h"
 #include "ecpglib.h"
diff --git a/src/interfaces/ecpg/ecpglib/pg_type.h b/src/interfaces/ecpg/ecpglib/pg_type.h
index 79a6cf8..e69de29 100644
--- a/src/interfaces/ecpg/ecpglib/pg_type.h
+++ b/src/interfaces/ecpg/ecpglib/pg_type.h
@@ -1,18 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * pg_type.h
- *	  Interface to generated type OID symbols.
- *
- * Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- * src/interfaces/ecpg/ecpglib/pg_type.h
- *
- *-------------------------------------------------------------------------
- */
-#ifndef PG_TYPE_H
-#define PG_TYPE_H
-
-#include "catalog/pg_type_d.h"
-
-#endif							/* PG_TYPE_H */
diff --git a/src/interfaces/ecpg/ecpglib/sqlda.c b/src/interfaces/ecpg/ecpglib/sqlda.c
index c1ba989..317d22f 100644
--- a/src/interfaces/ecpg/ecpglib/sqlda.c
+++ b/src/interfaces/ecpg/ecpglib/sqlda.c
@@ -8,7 +8,8 @@
 
 #define POSTGRES_ECPG_INTERNAL
 #include "postgres_fe.h"
-#include "pg_type.h"
+
+#include "catalog/pg_type_d.h"
 
 #include "ecpg-pthread-win32.h"
 #include "decimal.h"
diff --git a/src/interfaces/ecpg/ecpglib/typename.c b/src/interfaces/ecpg/ecpglib/typename.c
index 48587e4..9da1cdf 100644
--- a/src/interfaces/ecpg/ecpglib/typename.c
+++ b/src/interfaces/ecpg/ecpglib/typename.c
@@ -3,12 +3,13 @@
 #define POSTGRES_ECPG_INTERNAL
 #include "postgres_fe.h"
 
+#include "catalog/pg_type_d.h"
+
 #include "ecpgtype.h"
 #include "ecpglib.h"
 #include "extern.h"
 #include "sqltypes.h"
 #include "sql3types.h"
-#include "pg_type.h"
 
 /*
  * This function is used to generate the correct type names.
diff --git a/src/tools/findoidjoins/findoidjoins.c b/src/tools/findoidjoins/findoidjoins.c
index 82ef113..cbb7b59 100644
--- a/src/tools/findoidjoins/findoidjoins.c
+++ b/src/tools/findoidjoins/findoidjoins.c
@@ -7,7 +7,7 @@
  */
 #include "postgres_fe.h"
 
-#include "catalog/pg_class.h"
+#include "catalog/pg_class_d.h"
 
 #include "fe_utils/connect.h"
 #include "libpq-fe.h"