diff --git a/crypto/external/bsd/openssl.old/lib/Makefile b/crypto/external/bsd/openssl.old/lib/Makefile
index f370b8b72658..1c094046a16c 100644
--- a/crypto/external/bsd/openssl.old/lib/Makefile
+++ b/crypto/external/bsd/openssl.old/lib/Makefile
@@ -1,10 +1,7 @@
-#	$NetBSD: Makefile,v 1.1.1.2 2023/04/18 14:19:03 christos Exp $
+#	$NetBSD: Makefile,v 1.2 2023/07/08 23:41:27 rin Exp $
 
 .include "bsd.own.mk"
 
-# OpenSSL libraries.
-SUBDIR= libcrypto libcryptotest libdes
-
-SUBDIR+= .WAIT	libssl		# depends on libcrypto
+.include "Makefile.subdir"
 
 .include <bsd.subdir.mk>
diff --git a/crypto/external/bsd/openssl.old/lib/Makefile.subdir b/crypto/external/bsd/openssl.old/lib/Makefile.subdir
new file mode 100644
index 000000000000..44dcae343f14
--- /dev/null
+++ b/crypto/external/bsd/openssl.old/lib/Makefile.subdir
@@ -0,0 +1,5 @@
+#	$NetBSD: Makefile.subdir,v 1.1 2023/07/08 23:41:27 rin Exp $
+
+# OpenSSL libraries.
+SUBDIR+= ${OSSL}libcrypto ${OSSL}libcryptotest ${OSSL}libdes
+SUBDIR+= .WAIT	${OSSL}libssl		# depends on libcrypto