diff --git a/regress/unittests/authopt/Makefile b/regress/unittests/authopt/Makefile
index 492092fc6..e8edc7b5f 100644
--- a/regress/unittests/authopt/Makefile
+++ b/regress/unittests/authopt/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.4 2020/01/26 00:09:50 djm Exp $
+#	$OpenBSD: Makefile,v 1.5 2020/04/06 09:43:55 dtucker Exp $
 
 PROG=test_authopt
 SRCS=tests.c
@@ -17,6 +17,7 @@ SRCS+=ssh-ed25519-sk.c sk-usbhid.c
 
 SRCS+=digest-openssl.c
 #SRCS+=digest-libc.c
+SRCS+=utf8.c
 
 REGRESS_TARGETS=run-regress-${PROG}
 
diff --git a/regress/unittests/hostkeys/Makefile b/regress/unittests/hostkeys/Makefile
index c0a893135..d841d96be 100644
--- a/regress/unittests/hostkeys/Makefile
+++ b/regress/unittests/hostkeys/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.7 2020/01/26 00:09:50 djm Exp $
+#	$OpenBSD: Makefile,v 1.8 2020/04/06 09:43:56 dtucker Exp $
 
 PROG=test_hostkeys
 SRCS=tests.c test_iterate.c
@@ -15,6 +15,7 @@ SRCS+=ssh-ed25519-sk.c sk-usbhid.c
 
 SRCS+=digest-openssl.c
 #SRCS+=digest-libc.c
+SRCS+=utf8.c
 
 REGRESS_TARGETS=run-regress-${PROG}
 
diff --git a/regress/unittests/kex/Makefile b/regress/unittests/kex/Makefile
index 648006c78..1c5d68ce8 100644
--- a/regress/unittests/kex/Makefile
+++ b/regress/unittests/kex/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.9 2020/01/26 00:09:50 djm Exp $
+#	$OpenBSD: Makefile,v 1.10 2020/04/06 09:43:56 dtucker Exp $
 
 PROG=test_kex
 SRCS=tests.c test_kex.c
@@ -25,6 +25,7 @@ SRCS+=	smult_curve25519_ref.c
 SRCS+=	kexgen.c
 SRCS+=	kexsntrup4591761x25519.c
 SRCS+=	sntrup4591761.c
+SRCS+=	utf8.c
 
 SRCS+=digest-openssl.c
 #SRCS+=digest-libc.c
diff --git a/regress/unittests/sshkey/Makefile b/regress/unittests/sshkey/Makefile
index 78b2cf0ce..29c9b3ba7 100644
--- a/regress/unittests/sshkey/Makefile
+++ b/regress/unittests/sshkey/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.9 2020/01/26 00:09:50 djm Exp $
+#	$OpenBSD: Makefile,v 1.10 2020/04/06 09:43:56 dtucker Exp $
 
 PROG=test_sshkey
 SRCS=tests.c test_sshkey.c test_file.c test_fuzz.c common.c
@@ -15,6 +15,7 @@ SRCS+=ssh-ed25519-sk.c sk-usbhid.c
 
 SRCS+=digest-openssl.c
 #SRCS+=digest-libc.c
+SRCS+=utf8.c
 
 REGRESS_TARGETS=run-regress-${PROG}