diff --git a/sci-libs/openfoam/openfoam-2.3.0.ebuild b/sci-libs/openfoam/openfoam-2.3.0-r1.ebuild
similarity index 99%
rename from sci-libs/openfoam/openfoam-2.3.0.ebuild
rename to sci-libs/openfoam/openfoam-2.3.0-r1.ebuild
index d67d5effe5822..71cc63b372b42 100644
--- a/sci-libs/openfoam/openfoam-2.3.0.ebuild
+++ b/sci-libs/openfoam/openfoam-2.3.0-r1.ebuild
@@ -15,7 +15,7 @@ HOMEPAGE="http://www.openfoam.org"
 SRC_URI="http://downloads.sourceforge.net/foam/${MY_P}.tgz"
 
 LICENSE="GPL-2"
-SLOT="2.2"
+SLOT="2.3"
 KEYWORDS="~amd64 ~x86"
 IUSE="doc examples opendx src paraview"
 
diff --git a/sci-libs/openfoam/openfoam-2.3.1.ebuild b/sci-libs/openfoam/openfoam-2.3.1-r1.ebuild
similarity index 99%
rename from sci-libs/openfoam/openfoam-2.3.1.ebuild
rename to sci-libs/openfoam/openfoam-2.3.1-r1.ebuild
index 988db480333d5..edab349407437 100644
--- a/sci-libs/openfoam/openfoam-2.3.1.ebuild
+++ b/sci-libs/openfoam/openfoam-2.3.1-r1.ebuild
@@ -15,7 +15,7 @@ HOMEPAGE="http://www.openfoam.org"
 SRC_URI="http://downloads.sourceforge.net/foam/${MY_P}.tgz"
 
 LICENSE="GPL-2"
-SLOT="2.2"
+SLOT="2.3"
 KEYWORDS="amd64 x86"
 IUSE="doc examples opendx src paraview"
 
diff --git a/sci-libs/openfoam/openfoam-2.4.0.ebuild b/sci-libs/openfoam/openfoam-2.4.0-r1.ebuild
similarity index 99%
rename from sci-libs/openfoam/openfoam-2.4.0.ebuild
rename to sci-libs/openfoam/openfoam-2.4.0-r1.ebuild
index d26b9c736c43d..74e03341b7b39 100644
--- a/sci-libs/openfoam/openfoam-2.4.0.ebuild
+++ b/sci-libs/openfoam/openfoam-2.4.0-r1.ebuild
@@ -15,7 +15,7 @@ HOMEPAGE="http://www.openfoam.org"
 SRC_URI="http://downloads.sourceforge.net/foam/${MY_P}.tgz"
 
 LICENSE="GPL-2"
-SLOT="2.2"
+SLOT="2.4"
 KEYWORDS="~amd64 ~x86"
 IUSE="doc examples opendx src paraview"