diff --git a/kerberos5/libexec/k5admind/Makefile b/kerberos5/libexec/k5admind/Makefile
index f807f120c0c..70beef63d84 100644
--- a/kerberos5/libexec/k5admind/Makefile
+++ b/kerberos5/libexec/k5admind/Makefile
@@ -36,10 +36,10 @@ NOMAN=		yes
 .PATH:	${KRB5DIR}/kadmin
 
 kadm5/private.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/private.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/private.h > ${.TARGET}
 
 kadm5/admin.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/admin.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/admin.h > ${.TARGET}
 
 kadm5/kadm5_err.h: kadm5 kadm5_err.h
 	cd ${.OBJDIR}/kadm5 && ln -sf ../kadm5_err.h
diff --git a/kerberos5/libexec/k5passwdd/Makefile b/kerberos5/libexec/k5passwdd/Makefile
index ce0bdd38fa4..3b53959deeb 100644
--- a/kerberos5/libexec/k5passwdd/Makefile
+++ b/kerberos5/libexec/k5passwdd/Makefile
@@ -31,10 +31,10 @@ MAN=		kpasswdd.8
 .PATH:	${KRB5DIR}/kpasswd
 
 kadm5/admin.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/admin.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/admin.h > ${.TARGET}
 
 kadm5/private.h: kadm5
-	cp ${KRB5DIR}/lib/kadm5/private.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/private.h > ${.TARGET}
 
 kadm5:
 	mkdir ${.TARGET}
diff --git a/kerberos5/libexec/kadmind/Makefile b/kerberos5/libexec/kadmind/Makefile
index f807f120c0c..70beef63d84 100644
--- a/kerberos5/libexec/kadmind/Makefile
+++ b/kerberos5/libexec/kadmind/Makefile
@@ -36,10 +36,10 @@ NOMAN=		yes
 .PATH:	${KRB5DIR}/kadmin
 
 kadm5/private.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/private.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/private.h > ${.TARGET}
 
 kadm5/admin.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/admin.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/admin.h > ${.TARGET}
 
 kadm5/kadm5_err.h: kadm5 kadm5_err.h
 	cd ${.OBJDIR}/kadm5 && ln -sf ../kadm5_err.h
diff --git a/kerberos5/libexec/kpasswdd/Makefile b/kerberos5/libexec/kpasswdd/Makefile
index ce0bdd38fa4..3b53959deeb 100644
--- a/kerberos5/libexec/kpasswdd/Makefile
+++ b/kerberos5/libexec/kpasswdd/Makefile
@@ -31,10 +31,10 @@ MAN=		kpasswdd.8
 .PATH:	${KRB5DIR}/kpasswd
 
 kadm5/admin.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/admin.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/admin.h > ${.TARGET}
 
 kadm5/private.h: kadm5
-	cp ${KRB5DIR}/lib/kadm5/private.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/private.h > ${.TARGET}
 
 kadm5:
 	mkdir ${.TARGET}
diff --git a/kerberos5/usr.bin/k5admin/Makefile b/kerberos5/usr.bin/k5admin/Makefile
index 8ba76add34c..04ae169e834 100644
--- a/kerberos5/usr.bin/k5admin/Makefile
+++ b/kerberos5/usr.bin/k5admin/Makefile
@@ -56,10 +56,10 @@ MAN=		k5admin.8
 .PATH:	${KRB5DIR}/kadmin
 
 kadm5/private.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/private.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/private.h > ${.TARGET}
 
 kadm5/admin.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/admin.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/admin.h > ${.TARGET}
 
 kadm5/kadm5_err.h: kadm5 kadm5_err.h
 	cd ${.OBJDIR}/kadm5 && ln -sf ../kadm5_err.h
diff --git a/kerberos5/usr.bin/kadmin/Makefile b/kerberos5/usr.bin/kadmin/Makefile
index 8ba76add34c..04ae169e834 100644
--- a/kerberos5/usr.bin/kadmin/Makefile
+++ b/kerberos5/usr.bin/kadmin/Makefile
@@ -56,10 +56,10 @@ MAN=		k5admin.8
 .PATH:	${KRB5DIR}/kadmin
 
 kadm5/private.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/private.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/private.h > ${.TARGET}
 
 kadm5/admin.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/admin.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/admin.h > ${.TARGET}
 
 kadm5/kadm5_err.h: kadm5 kadm5_err.h
 	cd ${.OBJDIR}/kadm5 && ln -sf ../kadm5_err.h
diff --git a/kerberos5/usr.sbin/ktutil/Makefile b/kerberos5/usr.sbin/ktutil/Makefile
index 5c7455e7f50..a07663e3233 100644
--- a/kerberos5/usr.sbin/ktutil/Makefile
+++ b/kerberos5/usr.sbin/ktutil/Makefile
@@ -46,10 +46,10 @@ MAN=		ktutil.8
 .PATH:	${KRB5DIR}/admin
 
 kadm5/private.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/private.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/private.h > ${.TARGET}
 
 kadm5/admin.h:	kadm5
-	cp ${KRB5DIR}/lib/kadm5/admin.h ${.TARGET}
+	cat ${KRB5DIR}/lib/kadm5/admin.h > ${.TARGET}
 
 kadm5/kadm5_err.h: kadm5 kadm5_err.h
 	cd ${.OBJDIR}/kadm5 && ln -sf ../kadm5_err.h