diff --git a/dev-ml/ocaml-uri/ocaml-uri-1.9.1.ebuild b/dev-ml/ocaml-uri/ocaml-uri-1.9.1-r1.ebuild
similarity index 97%
rename from dev-ml/ocaml-uri/ocaml-uri-1.9.1.ebuild
rename to dev-ml/ocaml-uri/ocaml-uri-1.9.1-r1.ebuild
index e10f5b6c57b70..373e810ed77e7 100644
--- a/dev-ml/ocaml-uri/ocaml-uri-1.9.1.ebuild
+++ b/dev-ml/ocaml-uri/ocaml-uri-1.9.1-r1.ebuild
@@ -13,7 +13,7 @@ HOMEPAGE="https://github.com/mirage/ocaml-uri https://mirage.io"
 SRC_URI="https://github.com/mirage/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
 
 LICENSE="ISC"
-SLOT="0"
+SLOT="0/${PV}"
 KEYWORDS="~amd64"
 IUSE="allservices"