diff --git a/mail-filter/opendmarc/opendmarc-1.4.1.1.ebuild b/mail-filter/opendmarc/opendmarc-1.4.1.1-r1.ebuild
similarity index 96%
rename from mail-filter/opendmarc/opendmarc-1.4.1.1.ebuild
rename to mail-filter/opendmarc/opendmarc-1.4.1.1-r1.ebuild
index 793fac6ee9b66..4e857bfe07415 100644
--- a/mail-filter/opendmarc/opendmarc-1.4.1.1.ebuild
+++ b/mail-filter/opendmarc/opendmarc-1.4.1.1-r1.ebuild
@@ -10,7 +10,7 @@ HOMEPAGE="http://www.trusteddomain.org/opendmarc/"
 SRC_URI="https://github.com/trusteddomainproject/OpenDMARC/archive/rel-${PN}-${PV//./-}.tar.gz -> ${P}.tar.gz"
 
 LICENSE="BSD"
-SLOT="0"
+SLOT="0/3"  # 1.4 has API breakage with 1.3, yet uses same soname
 KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~ppc ~ppc64 ~sparc ~x86"
 IUSE="spf +reports static-libs"