diff --git a/usr.bin/tn3270/tools/mkastods/Makefile b/usr.bin/tn3270/tools/mkastods/Makefile
index f7c6608680e5..c8507b78123a 100644
--- a/usr.bin/tn3270/tools/mkastods/Makefile
+++ b/usr.bin/tn3270/tools/mkastods/Makefile
@@ -4,6 +4,7 @@ PROG=	mkastods
 SRCS=	mkastods.c asc_ebc.c ebc_disp.c
 CFLAGS+=-I${.CURDIR}/..
 NOMAN=	noman
+NOSHARED=1
 .PATH:	${.CURDIR}/../../api
 
 .include <bsd.prog.mk>
diff --git a/usr.bin/tn3270/tools/mkastosc/Makefile b/usr.bin/tn3270/tools/mkastosc/Makefile
index c06d0755bd0a..1bac509be5f6 100644
--- a/usr.bin/tn3270/tools/mkastosc/Makefile
+++ b/usr.bin/tn3270/tools/mkastosc/Makefile
@@ -4,6 +4,7 @@ PROG=	mkastosc
 SRCS=	mkastosc.c dohits.c asc_ebc.c ebc_disp.c
 CFLAGS+=-I${.CURDIR}/../mkhits -I${.CURDIR}/..
 NOMAN=	noman
+NOSHARED=1
 .PATH:	${.CURDIR}/../mkhits ${.CURDIR}/../../api
 
 .include <bsd.prog.mk>
diff --git a/usr.bin/tn3270/tools/mkdctype/Makefile b/usr.bin/tn3270/tools/mkdctype/Makefile
index 363eb01ffdb8..82c146d892ed 100644
--- a/usr.bin/tn3270/tools/mkdctype/Makefile
+++ b/usr.bin/tn3270/tools/mkdctype/Makefile
@@ -4,6 +4,7 @@ PROG=	mkdctype
 SRCS=	mkdctype.c ebc_disp.c ectype.c
 CFLAGS+=-I${.CURDIR}/..
 NOMAN=	noman
+NOSHARED=1
 .PATH:	${.CURDIR}/../../api
 
 .include <bsd.prog.mk>
diff --git a/usr.bin/tn3270/tools/mkdstoas/Makefile b/usr.bin/tn3270/tools/mkdstoas/Makefile
index 53ecd705e440..4913d0a63fd5 100644
--- a/usr.bin/tn3270/tools/mkdstoas/Makefile
+++ b/usr.bin/tn3270/tools/mkdstoas/Makefile
@@ -4,6 +4,7 @@ PROG=	mkdstoas
 SRCS=	mkdstoas.c asc_ebc.c ebc_disp.c
 CFLAGS+=-I${.CURDIR}/..
 NOMAN=	noman
+NOSHARED=1
 .PATH:	${.CURDIR}/../../api
 
 .include <bsd.prog.mk>
diff --git a/usr.bin/tn3270/tools/mkhits/Makefile b/usr.bin/tn3270/tools/mkhits/Makefile
index 169e6c419450..114533d12b1e 100644
--- a/usr.bin/tn3270/tools/mkhits/Makefile
+++ b/usr.bin/tn3270/tools/mkhits/Makefile
@@ -4,6 +4,7 @@ PROG=	mkhits
 SRCS=	mkhits.c dohits.c asc_ebc.c ebc_disp.c
 CFLAGS+=-I${.CURDIR}/..
 NOMAN=	noman
+NOSHARED=1
 .PATH:	${.CURDIR}/../../api
 
 .include <bsd.prog.mk>