diff --git a/dev-R/RcppEnsmallen/RcppEnsmallen-0.2.19.0.1.ebuild b/dev-R/RcppEnsmallen/RcppEnsmallen-0.2.19.0.1-r1.ebuild
similarity index 98%
rename from dev-R/RcppEnsmallen/RcppEnsmallen-0.2.19.0.1.ebuild
rename to dev-R/RcppEnsmallen/RcppEnsmallen-0.2.19.0.1-r1.ebuild
index f65fe2842b..6369326489 100644
--- a/dev-R/RcppEnsmallen/RcppEnsmallen-0.2.19.0.1.ebuild
+++ b/dev-R/RcppEnsmallen/RcppEnsmallen-0.2.19.0.1-r1.ebuild
@@ -14,6 +14,7 @@ HOMEPAGE="
 "
 #SRC_URI="mirror://cran/src/contrib/RcppEnsmallen/RcppEnsmallen_${PV}.tar.gz"
 
+SLOT="0/${PV}"
 KEYWORDS="~amd64"
 LICENSE='GPL-2+'