diff --git a/mail/avenger/Makefile b/mail/avenger/Makefile
index 818ca72a2e8..7d7507b164f 100644
--- a/mail/avenger/Makefile
+++ b/mail/avenger/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.7 2010/04/26 20:09:18 steven Exp $
+# $OpenBSD: Makefile,v 1.8 2010/07/09 06:01:07 landry Exp $
 
 COMMENT=		anti-spam SMTP server
 DISTNAME=		avenger-0.7.4
@@ -29,6 +29,9 @@ CONFIGURE_ARGS+=	--with-db=${LOCALBASE} \
 CONFIGURE_ENV+=		WFLAGS="-Wall" \
 			sfs_cv_dev_random="/dev/arandom"
 
+MAKE_FLAGS+=		CFLAGS+=-DHAVE_GETPEEREID \
+			CXXFLAGS+=-DHAVE_GETPEEREID
+
 FLAVORS=                sasl2
 FLAVOR?=