diff --git a/configure.ac b/configure.ac
index 95cdbea451..2cf28ef346 100644
--- a/configure.ac
+++ b/configure.ac
@@ -867,7 +867,6 @@ AC_CHECK_HEADERS(	\
 	locale.h		\
 	malloc.h		\
 	memory.h		\
-	psap.h			\
 	pwd.h			\
 	process.h		\
 	sgtty.h			\
diff --git a/libraries/liblber/Makefile.in b/libraries/liblber/Makefile.in
index 54369789ba..3a7c5e6035 100644
--- a/libraries/liblber/Makefile.in
+++ b/libraries/liblber/Makefile.in
@@ -29,7 +29,7 @@ OBJS= assert.lo decode.lo encode.lo io.lo bprint.lo debug.lo \
 	memory.lo options.lo sockbuf.lo $(@PLAT@_OBJS)
 XSRCS= version.c
 
-PROGRAMS= dtest etest idtest
+PROGRAMS= dtest etest
 
 LDAP_INCDIR= ../../include
 LDAP_LIBDIR= ../../libraries
@@ -44,8 +44,6 @@ dtest:    $(XLIBS) dtest.o
 	$(LTLINK) -o $@ dtest.o $(LIBS)
 etest:  $(XLIBS) etest.o
 	$(LTLINK) -o $@ etest.o $(LIBS)
-idtest:  $(XLIBS) idtest.o
-	$(LTLINK) -o $@ idtest.o $(LIBS)
 
 install-local: FORCE
 	-$(MKDIR) $(DESTDIR)$(libdir)
diff --git a/libraries/liblber/idtest.c b/libraries/liblber/idtest.c
deleted file mode 100644
index f4e7ac2fe5..0000000000
--- a/libraries/liblber/idtest.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/* idtest.c - ber decoding test program using isode libraries */
-/* $OpenLDAP$ */
-/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
- *
- * Copyright 1998-2022 The OpenLDAP Foundation.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted only as authorized by the OpenLDAP
- * Public License.
- *
- * A copy of this license is available in the file LICENSE in the
- * top-level directory of the distribution or, alternatively, at
- * <http://www.OpenLDAP.org/license.html>.
- */
-/* Portions Copyright (c) 1990 Regents of the University of Michigan.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that this notice is preserved and that due credit is given
- * to the University of Michigan at Ann Arbor. The name of the University
- * may not be used to endorse or promote products derived from this
- * software without specific prior written permission. This software
- * is provided ``as is'' without express or implied warranty.
- */
-/* ACKNOWLEDGEMENTS:
- * This work was originally developed by the University of Michigan
- * (as part of U-MICH LDAP).
- */
-
-#include "portable.h"
-
-#include <stdio.h>
-
-#include <ac/stdlib.h>
-
-#ifdef HAVE_PSAP_H
-#include <psap.h>
-#include <quipu/attr.h>
-#endif
-
-int
-main( int argc, char **argv )
-{
-#ifdef HAVE_PSAP_H
-	PE	pe;
-	PS	psin, psout, pserr;
-
-	/* read the pe from standard in */
-	if ( (psin = ps_alloc( std_open )) == NULLPS ) {
-		perror( "ps_alloc" );
-		exit( EXIT_FAILURE );
-	}
-	if ( std_setup( psin, stdin ) == NOTOK ) {
-		perror( "std_setup" );
-		exit( EXIT_FAILURE );
-	}
-	/* write the pe to standard out */
-	if ( (psout = ps_alloc( std_open )) == NULLPS ) {
-		perror( "ps_alloc" );
-		exit( EXIT_FAILURE );
-	}
-	if ( std_setup( psout, stdout ) == NOTOK ) {
-		perror( "std_setup" );
-		exit( EXIT_FAILURE );
-	}
-	/* pretty print it to standard error */
-	if ( (pserr = ps_alloc( std_open )) == NULLPS ) {
-		perror( "ps_alloc" );
-		exit( EXIT_FAILURE );
-	}
-	if ( std_setup( pserr, stderr ) == NOTOK ) {
-		perror( "std_setup" );
-		exit( EXIT_FAILURE );
-	}
-
-	while ( (pe = ps2pe( psin )) != NULLPE ) {
-		pe2pl( pserr, pe );
-		pe2ps( psout, pe );
-	}
-
-	exit( EXIT_SUCCESS );
-#else
-	fprintf(stderr, "requires ISODE X.500 distribution.\n");
-	return( EXIT_FAILURE );
-#endif
-}