diff --git a/mail/balsa/Makefile b/mail/balsa/Makefile
index d4c62f93766a..6585e651a684 100644
--- a/mail/balsa/Makefile
+++ b/mail/balsa/Makefile
@@ -37,4 +37,6 @@ CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include ${PTHREAD_CFLAGS}" \
 
 MAN1=		balsa.1
 
+CONFLICTS=	balsa2-*
+
 .include <bsd.port.mk>
diff --git a/mail/balsa2/Makefile b/mail/balsa2/Makefile
index f2bdac3700b6..84aa6036275c 100644
--- a/mail/balsa2/Makefile
+++ b/mail/balsa2/Makefile
@@ -36,6 +36,8 @@ CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include ${PTHREAD_CFLAGS}" \
 
 MAN1=		balsa.1
 
+CONFLICTS=	balsa-*
+
 .if defined(WITH_GPG)
 LIB_DEPENDS+=		gpgme.9:${PORTSDIR}/security/gpgme
 CONFIGURE_ARGS+=	--enable-gpgme