diff --git a/usr.sbin/unbound/Makefile.inc b/usr.sbin/unbound/Makefile.inc
index 433c6cd122a5..cdb1faf5a14f 100644
--- a/usr.sbin/unbound/Makefile.inc
+++ b/usr.sbin/unbound/Makefile.inc
@@ -7,8 +7,8 @@ PACKAGE=	unbound
 .for man in ${MAN}
 ${man}: ${UNBOUNDDIR}/doc/${man:S/local-//}
 	sed -E \
-	    -e 's/\<(fI)?unbound\>/\1local-unbound/g' \
-	    -e 's/\<(fI)?Unbound\>/Local-unbound/g' \
+	    -e 's/\<(fI)?u(nbound\>[^.])/\1local-u\2/g' \
+	    -e 's/\<(fI)?U(nbound\>[^.])/\1Local-u\2/g' \
 	    -e 's/\/local-unbound/\/unbound/g' \
 	    <${.ALLSRC} >${.TARGET}
 CLEANFILES += ${man}