diff --git a/dev-python/oslo-privsep/oslo-privsep-1.22.1.ebuild b/dev-python/oslo-privsep/oslo-privsep-1.22.1-r1.ebuild
similarity index 93%
rename from dev-python/oslo-privsep/oslo-privsep-1.22.1.ebuild
rename to dev-python/oslo-privsep/oslo-privsep-1.22.1-r1.ebuild
index f2203d0c8ccec..d459390668fd5 100644
--- a/dev-python/oslo-privsep/oslo-privsep-1.22.1.ebuild
+++ b/dev-python/oslo-privsep/oslo-privsep-1.22.1-r1.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2017 Gentoo Foundation
+# Copyright 1999-2018 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=6
@@ -47,6 +47,8 @@ RDEPEND="
 
 python_prepare_all() {
 	sed -i '/^hacking/d' test-requirements.txt || die
+	# allow useage of renamed msgpack
+	sed -i '/^msgpack/d' requirements.txt || die
 	distutils-r1_python_prepare_all
 }
 
diff --git a/dev-python/oslo-privsep/oslo-privsep-1.27.0.ebuild b/dev-python/oslo-privsep/oslo-privsep-1.27.0-r1.ebuild
similarity index 95%
rename from dev-python/oslo-privsep/oslo-privsep-1.27.0.ebuild
rename to dev-python/oslo-privsep/oslo-privsep-1.27.0-r1.ebuild
index 5e6d30a2d6542..9d5c86fdc1383 100644
--- a/dev-python/oslo-privsep/oslo-privsep-1.27.0.ebuild
+++ b/dev-python/oslo-privsep/oslo-privsep-1.27.0-r1.ebuild
@@ -44,6 +44,8 @@ RDEPEND="
 
 python_prepare_all() {
 	sed -i '/^hacking/d' test-requirements.txt || die
+	# allow useage of renamed msgpack
+	sed -i '/^msgpack/d' requirements.txt || die
 	distutils-r1_python_prepare_all
 }