diff --git a/krb5/Makefile.inc b/krb5/Makefile.inc
index 52910c3ebe4..8529ee90a2e 100644
--- a/krb5/Makefile.inc
+++ b/krb5/Makefile.inc
@@ -22,7 +22,6 @@ 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