diff --git a/lib/irs/include/irs/Makefile.in b/lib/irs/include/irs/Makefile.in
index eca98eb136..2a47975516 100644
--- a/lib/irs/include/irs/Makefile.in
+++ b/lib/irs/include/irs/Makefile.in
@@ -23,7 +23,7 @@ top_srcdir =	@top_srcdir@
 # machine generated.  The latter are handled specially in the
 # install target below.
 #
-HEADERS =	version.h
+HEADERS =	context.h dnsconf.h resconf.h types.h version.h
 
 SUBDIRS =
 TARGETS =
@@ -39,8 +39,6 @@ install:: installdirs
 	done
 	${INSTALL_DATA} netdb.h ${DESTDIR}${includedir}/irs
 	${INSTALL_DATA} platform.h ${DESTDIR}${includedir}/irs
-	${INSTALL_DATA} resconf.h ${DESTDIR}${includedir}/irs
-	${INSTALL_DATA} types.h ${DESTDIR}${includedir}/irs
 
 distclean::
 	rm -f netdb.h platform.h