diff --git a/mail/ezmlm-idx/Makefile b/mail/ezmlm-idx/Makefile
index c0482f0faf15..208591281152 100644
--- a/mail/ezmlm-idx/Makefile
+++ b/mail/ezmlm-idx/Makefile
@@ -24,6 +24,8 @@ COMMENT=	Improved version of the ezmlm mailing list manager
 
 RUN_DEPENDS=	${QMAIL_DIR}/bin/qmail-send:${PORTSDIR}/mail/qmail
 
+CONFLICTS=	ezmlm-0.*
+
 # QMAIL_DIR is the directory where qmail is installed
 QMAIL_DIR?=	/var/qmail
 
diff --git a/mail/ezmlm/Makefile b/mail/ezmlm/Makefile
index 40fb39ff94cb..81d90a8ff21c 100644
--- a/mail/ezmlm/Makefile
+++ b/mail/ezmlm/Makefile
@@ -21,6 +21,8 @@ COMMENT=	An easy-to-use, high-speed mailing list manager for qmail
 
 RUN_DEPENDS=	${QMAIL_DIR}/bin/qmail-send:${PORTSDIR}/mail/qmail
 
+CONFLICTS=	ezmlm-idx-*
+
 NO_PACKAGE=	Unsure of DJB license
 
 # QMAIL_DIR is the directory where qmail is installed