diff --git a/krb5/Makefile.inc b/krb5/Makefile.inc
index 52910c3ebe4a..8529ee90a2e0 100644
--- a/krb5/Makefile.inc
+++ b/krb5/Makefile.inc
@@ -1,45 +1,44 @@
 #
 # SPDX-License-Idendifier: BSD-2-Clause
 #
 # Copyright (c) 2025 FreeBSD Foundation
 #
 # This sofware was developed by Cy Schubert <cy@FreeBSD.org>
 # under sponsorship from the FreeBSD Foundation.
 #
 
 .include <src.opts.mk>
 
 # MIT KRB5 uses KRB5_DIR. Heimdal uses KRB5DIR.
 KRB5_SRCTOP=	${SRCTOP}/krb5
 KRB5_DIR=	${SRCTOP}/crypto/krb5/src
 KRB5_ETDIR?=	${DESTDIR}/usr/share/et
 KRB5_SRCLIBDIR=	${KRB5_DIR}/lib
 
 KRB5_OBJTOP=	${OBJTOP}/krb5
 KRB5_OBJHDR=	${OBJTOP}/include
 COMPILE_ET=	compile_et -d ${KRB5_DIR}/util/et --textdomain mit-krb5
 MAKE_COMMANDS=	${KRB5_OBJTOP}/util/ss/mk_cmds
 
 # There are no WARNS levels for this.
 CFLAGS+=	-Wno-deprecated-non-prototype \
-		-Wno-macro-redefined \
 		-Wno-unused-parameter
 
 WARNS?=		1
 
 KRB5RCTMPDIR=		/var/tmp
 KRB5PREFIX=		/usr
 KRB5_EXEC_PREFIX=	/usr
 KRB5_BINDIR=		/usr/bin
 KRB5_LIBDIR=		/usr/lib
 KRB5_SBINDIR=		/usr/sbin
 KRB5_MODULEDIR=		/usr/lib/krb5/plugins
 KRB5_GSSMODULEDIR=	/usr/lib/gss
 KRB5_LOCALEDIR=		/usr/share/locale
 KRB5_DOCSDIR=		${SHAREDIR}/doc/krb5
 KRB5_HTMLDOCSDIR=	${KRB5_DOCSDIR}/html
 KRB5_LOCALSTATEDIR=	/var
 KRB5_RUNSTATEDIR=	/var/run
 KRB5_SYSCONFDIR=	/etc
 KRB5_DYNOBJEXT=		.so
 KRB5_SYSCONFCONF=	/etc/krb5.conf